San Francisco (CNN Business) Two of San Francisco's wealthiest tech leaders clashed on Twitter over the best way to address the city's homeless problem. 
 
 Salesforce CEO Marc Benioff is pushing for a tax on San Francisco's largest companies to raise money for homeless efforts. Twitter and Square CEO Jack Dorsey is against the tax, and wants to let the city's new mayor, London Breed, come up with alternative plans. 
 
 "These tech CEOs, they need to realize if they want to do business in San Francisco and use all of our civic resources, and in some cases have gotten mid-Market tax breaks, then they should be more than happy to give a small amount — which is what it is for these companies — to help us focus on our number one issue," Benioff told CNN Business in a phone interview Friday afternoon. 
 
 Benioff is spending money to promote ballot Proposition C , which would tax large companies based in the city. The tax would vary, but come out to about 0.5 percent on businesses' gross receipts above $50 million a year. 
 
 It would raise up $300 million annually to address homelessness by building more housing, increasing mental health treatment, and adding shelter beds. That is double what the city currently spends a year on the issue. 
 
 Salesforce is the largest employer in the city, and Benioff, a San Francisco native, is very active in local issues. He has been a major donor to San Francisco and Oakland public schools, and recently helped raise $37 million for the Heading Home Campaign, which aims to get families with children off the streets. 
 
 "I want to help fix the homeless problem in SF and California. I don't believe this (Prop C) is the best way to do it," said Dorsey in a Tweet reply to Benioff on Friday. 
 
 I want to help fix the homeless problem in SF and California. I don't believe this (Prop C) is the best way to do it. I support Mayor @LondonBreed and @Scott_Wiener's commitment to address this the right way. Mayor Breed was elected to fix this. I trust her. https://t.co/EsxapfDvtI — jack (@jack) October 12, 2018 
 
 Benioff replied by asking for examples of how Dorsey has helped and what donations he's made. Dorsey called the question a "distraction" and said he wants to support Mayor London Breed's efforts. 
 
 Mayor Breed has come out against the proposition, citing concerns about oversight and accountability for how the money is used. There are also concerns it could lead to layoffs or cause businesses to relocate, Breed has said. Breed wants to know more about how it will impact the local economy. 
 
 "I do not believe doubling what we spend on homelessness without new accountability, when we don't even spend what we have now efficiently, is good government," said Breed in a statement. "I absolutely do agree business can pay more to address our homeless crisis, which is why I will lead the effort to do this the right way as Mayor, and I look forward to continuing to work in partnership with Marc and others do that." 
 
 In a statement, a spokesperson for Square said: "Homelessness in San Francisco is a humanitarian crisis. We support Mayor London Breed, Senator Scott Wiener, and Assembly member David Chiu's calls for a consensus response to homelessness, and we are eager to collaborate with City Hall, local organizations, and other businesses on a unified approach to this issue. Prop C is not that approach." 
 
 Benioff says he recently got a call from the mayor asking for $8 million to fund a new shelter. 
 
 "If she had Prop C, she wouldn't have to call for that money. It would already have been given to her. Seems pretty straightforward to me," said Benioff. 
 
 The debate mirrors a similar contentious battle in Seattle this past summer. The city had proposed a new corporate head tax to raise money for homeless service. Amazon led the charge to stop the tax from being passed. 
 
 San Francisco's tax could fare better. A local homeless advocate group raised the signatures to get it on to November's ballot. It has support from other large companies like Cisco, as well as Representatives Nancy Pelosi and Jackie Speier. And Benioff is ready to fight for it. 
 
 "I didn't realize until this morning that Jack Dorsey was not going to support it," said Benioff. "The question is how much is he giving back to our public hospitals and schools and to our homeless programs. The only way we're going to make our city better is if we tap the incredible wealth that it's generating." 
 
 Benioff, who says he talks to Dorsey regularly, has been paying to promote tweets supporting the proposition. 
 
 "I'm glad that Jack tweeted that because we need to have a pubic discussion about homelessness and how we're going to solve it." 
 
 Dorsey tweeted late Friday that discussions were under way. 
 
 "Marc and I talked on the phone. Also talked with Mayor London this afternoon. We're all talking now and aligned to fix this issue as fast as we can. Will keep everyone updated," he said. ||||| On Friday, Twitter CEO Jack Dorsey and Salesforce CEO Marc Benioff publicly sparred over a controversial proposal to fight homelessness in San Francisco. 
 
 When Dorsey voiced his opposition to a bill that would increase taxes on big businesses to raise money for homeless services, Benioff questioned his fellow CEO's personal and financial commitment to the problem while highlighting tax breaks Twitter has previously received. 
 
 Proposition C, which will appear on San Francisco ballots in November, proposes a new tax on the city's largest businesses that could generate up to $300 million annually to aid its homelessness crisis. Benioff has strongly endorsed Prop C, pledging up to $2 million to support the measure, which could cost Salesforce up to $10 million in additional taxes a year. 
 
 Dorsey, however, has sided with the proposition's detractors, including San Francisco Mayor London Breed and state Sen. Scott Wiener, who argue that the proposition lacks the proper accountability and oversight. 
 
 After Dorsey disagreed with Benioff's support of Prop C on Twitter, Benioff fired back by asking Dorsey, who is also CEO of Square, about his and his companies' financial contributions to fighting homelessness. 
 
 For years, Dorsey's companies have benefited from the Central Market Tax Exclusion, commonly called the "Twitter Tax Break," which encourages companies to maintain offices in a rough neighborhood in San Francisco. 
 
 Dorsey responded by telling Benioff that he was "distracting" from his support of Mayor Breed: 
 
 Benioff and Dorsey have a history: The Salesforce CEO tried to buy Twitter in 2016. 
 
 Overall, more than 7,000 people experience homelessness in San Francisco, where detritus indicative of human suffering on the street stands in stark contrast with the city's overall tech-fueled wealth. ||||| ‘How much have you given’ Marc Benioff asked Jack Dorsey as the two sparred over proposed tax to assist those on the streets 
 
 Twitter and Salesforce CEOs bicker over who is helping the homeless more 
 
 The CEOs of two of the world’s most prominent tech companies got into an online spat on Friday over who was doing the most to address homelessness. 
 
 The Salesforce CEO, Marc Benioff, and Twitter CEO, Jack Dorsey, were tweeting at each other about a proposed tax on high-earning San Francisco businesses. It would redirect millions of dollars to help thousands of people who live on the streets, including outside the headquarters of both companies. 
 
 Benioff tweeted that he was in favor of the tax. Dorsey tweeted that he was not – prompting a displeased response. 
 
 “Hi Jack. Thanks for the feedback,” Benioff quipped. “Which homeless programs in our city are you supporting? Can you tell me what Twitter and Square & you are in for & at what financial levels? How much have you given to heading home our $37M initiative to get every homeless child off the streets?” 
 
 Benioff was referring to an initiative he is spearheading for homeless families. In May he announced that he and his wife would match a $1.5m donation from his company’s philanthropic arm. 
 
 In a second tweet, he alleged that Dorsey had failed to contribute to the city’s homeless programs, public hospitals and public schools, despite earning billions and receiving a tax break to relocate in a deprived part of town. 
 
 Dorsey did not respond. He has taken on the housing crisis in different ways, and recently threw his weight behind a controversial bill that would have made it more difficult for cities to say no to development. 
 
 Why is San Francisco ... covered in human feces? | Nathan Robinson Read more 
 
 Both billionaires have grown their businesses in the heart of San Francisco, where roughly 7,500 people sleep on the sidewalks each night. The tech boom has contributed to rising housing costs that have exacerbated the problem. 
 
 Tech industry moguls have come under fire in their past for their responses to homelessness, from supporting a controversial proposition, passed in 2016, restricting tents on sidewalks, to public rants. One tech company founder referred to homeless people as “riff-raff” and complained about having to encounter them. 
 
 If voters approve the tax ballot measure, called Proposition C, next month, an estimated $250-$300m in additional revenue would go toward housing the homeless, providing rental assistance and bolstering mental health services and shelters. According to an analysis conducted by the city’s Office of the Controller, about 300 to 400 businesses would be affected. Fifty percent of them would be in the information and financial services sectors. 
 
 A slew of left-leaning organizations and representatives, including the House minority leader, Nancy Pelosi, support the tax, but the newly elected mayor, London Breed, has come out against it, citing concerns that it could put a chill on economic growth. 
 
 “We all recognize the crisis on our streets; we see it every day,” she wrote on Medium. “So I understand why Proposition C sounds appealing, and I know those who support it are well-intentioned. But as Mayor, I must weigh more than popularity and good intentions. I must consider the long-term impacts on our City.” 
 
 Breed has been criticized for her position, especially now that Benioff – whose business will be among those expected to pay the tax – has become so vocal in his support. 
 
 “Homelessness is all of our responsibility which is why we are supporting Prop C,” he stated in a tweet now pinned to the top of his page. “Together, as one San Francisco, we can take on our city’s most complex & difficult problems. As SF’s largest employer we recognize we are part of the solution.” ||||| San Francisco voters Tuesday gave a solid thumbs-up to Proposition C, which is designed to inject the most money ever directed at city homeless programs by taxing big businesses to raise hundreds of millions of dollars. 
 
 Back to Gallery SF Prop. C homeless tax — measure to raise $300 million... 6 1of 6 Photo: Gabrielle Lurie / The Chronicle 2of 6 Photo: Liz Hafalia / The Chronicle 3of 6 Photo: Amy Osborne / Special to The Chronicle 4of 6 Photo: Amy Osborne / Special to The Chronicle 5of 6 Photo: Lea Suzuki / The Chronicle 6of 6 Photo: Amy Osborne / Special to The Chronicle 
 
 
 
 
 
 
 
 
 
 
 
 With 99 percent of the vote counted, the measure won 60 percent to 40 percent — a solid majority, but one that might not be big enough to avoid legal entanglements tying up or even eliminating the funding the proposition aims to to raise. 
 
 The measure was easily the most contentious on the city ballot, dividing political leaders and pitting the Chamber of Commerce and the owner of tech giant Twitter against nonprofit programs and the owner of the city’s largest private employer, Salesforce. 
 
 It will charge corporations with revenue above $50 million about 0.5 percent in gross receipts tax, with the proceeds going entirely toward homeless programs. Budget analysts estimate it will raise between $250 million and $300 million a year — nearly doubling the amount already being spent on homeless services and housing. 
 
 Prop. C, also referred to as the “Our City, Our Home” initiative, needed one vote over 50 percent to pass, but proponents were hoping for two-thirds to avoid legal challenges from those who believe anything less might violate state law. Some form of that challenge now seems nearly inevitable, delaying the implementation for months or years 
 
 Billionaire Salesforce founder and CEO Marc Benioff, who poured at least $7 million of his own and his company’s money into the campaign for Prop. C, proclaimed he was “delighted the voters agree that this was what the city so badly needed.” 
 
 He said that despite not meeting two-thirds vote, the city should press full speed ahead, and that he will lend the full capabilities of his legal team to help that happen. 
 
 “Fifty percent is all we need — there is (California) Supreme Court precedent on this,” he said. “We will fight whatever challenge comes up.” 
 
 Prop C’s victory means the homeless will have a home & the help they truly need! Let the city come together in Love for those who need it most! There is no finish line when it come to helping the homeless. Thank you amazing supporters of Prop C! pic.twitter.com/0JOXCua1m1 — Marc Benioff (@Benioff) November 7, 2018 
 
 Homelessness has long been considered San Francisco’s No. 1 problem, driving away tourists and mortifying residents with the daily spectacle of ranting mentally ill people, addled addicts and tent camps. So there was little disagreement at the idea that more funding could help. 
 
 The heated debate was about how much money that should be, how it would be spent and monitored, and whether dipping a new hand into business pockets would drive away jobs and damage the city’s burgeoning economy. 
 
 The highest-profile battle over the initiative kicked off when billionaire Benioff and his company pitched in their funding and challenged other business leaders to join them. Jack Dorsey, head of Square and Twitter, fired back on — yes, Twitter — that the tax would be unfair, tamp down growth in the city and wasn’t thought out well enough. 
 
 Jennifer Friedenbach, executive director of the San Francisco Coalition on Homelessness and a principal architect of Prop. C, said the argument that the plan wasn’t detailed enough didn’t hold water. 
 
 “It’s a comprehensive plan that’s been carefully thought through,” she said. 
 
 Any legal challenge, she added, “will just delay things, and more homeless people will die in the meantime. But we will prevail.” 
 
 Opponents said they were confident a legal challenge now making its way through the courts to similar 50-plus-one percent votes, including a June San Francisco measure to boost teacher salaries, will delay if not outright kill Prop. C by setting a new negative precedent. 
 
 Meanwhile, it is probable that the tax will be collected and merely banked — not spent — while the legalities are worked out. That could result in a whopping pot of built-up cash that becomes suddenly available down the line if the challenge takes one or two years. 
 
 “Despite an unprecedented, all-out $10 million campaign, the Yes on C campaign failed to earn two-thirds support, and as a result San Francisco stands to never see a penny for what Prop. C promised,” said Jess Montejano, spokesman for the No on C campaign, which was led by the San Francisco Chamber of Commerce. He said opponents would work with Mayor London Breed, who also opposed the measure — for other solutions to the homelessness crisis. 
 
 The city’s chief economist estimated that the tax’s impact on the economy and the job market would be “small,” costing the city as many as 875 jobs over the next two decades. 
 
 Prop. C mandated that at least half of the $300 million be spent on permanent housing for homeless people. About 25 percent was blocked out for mental health services, up to 15 percent for services to help those who recently became homeless or are at risk of becoming so, and up to 10 percent for emergency shelter and hygiene programs. Proponents said the new money can create housing for at least 5,000 people and 1,000 new emergency shelter beds. 
 
 As many as 400 companies, making up 15 to 20 percent of the city’s job base, will be subject to the new tax. The city’s chief economist estimated that the tax’s impact on the economy and the job market would be “small,” costing the city as many as 875 jobs over the next two decades. 
 
 The analysis could not project, however, the difficult math of how much business and employment might be generated by a reduction in the vexing homeless problem — something proponents said would happen. 
 
 Kevin Fagan is a San Francisco Chronicle staff writer. Email: kfagan@sfchronicle.com Twitter: @KevinChron ||||| In an open letter to the city’s mayor Ed Lee, entrepreneur Justin Keller said he is ‘outraged’ that wealthy workers have to see people in pain and despair 
 
 Super Bowl protests flare up over plight of San Francisco’s homeless residents Read more 
 
 In only the latest cultural altercation between San Francisco’s tech workers and the city’s impoverished population, one tech worker has declared the homeless are “riff raff” whose “pain, struggle and despair” shouldn’t have to be endured by “wealthy” people commuting to work. 
 
 It’s a familiar story. A male entrepreneur (some might even call him a “tech bro”) – flush with the sense of self-worth and self-satisfaction that comes from living and working in a city and industry that treats him and his friends as the most important and intelligent human beings ever to grace a metropolitan area with their presence – takes a moment to think about homelessness. Not content to wrinkle his nose and move on with his day, he types those thoughts out. He publishes them on the internet. 
 
 And, there, with the click of a button, he enters the pantheon of infamous San Francisco tech bros. 
 
 Justin Keller, an entrepreneur, developer and the founder of startup Commando.io, joined those exalted ranks on 15 February when he published an open letter to San Francisco mayor Ed Lee and police chief Greg Suhr: 
 
 I am writing today, to voice my concern and outrage over the increasing homeless and drug problem that the city is faced with. I’ve been living in SF for over three years, and without a doubt it is the worst it has ever been. Every day, on my way to, and from work, I see people sprawled across the sidewalk, tent cities, human feces, and the faces of addiction. The city is becoming a shanty town … Worst of all, it is unsafe. 
 
 The wealthy working people have earned their right to live in the city Justin Keller, tech entrepreneur 
 
 Keller explained that he had been moved to action by his experience over the holiday weekend, when his parents and relatives came to visit. Three encounters with “a homeless drunken man” in the street, a “distraught, and high person” outside a restaurant, and a man who “took his shirt off and laid down” in a movie theater left him angry and frustrated with the city’s homelessness “problem”. 
 
 While Keller is not alone in his frustration that there are nearly 7,000 people living in San Francisco without homes, his letter is distinctive for its total lack of sympathy for the plight of those in difficult circumstances, focusing instead on the discomfort of the “wealthy”: 
 
 The residents of this amazing city no longer feel safe. I know people are frustrated about gentrification happening in the city, but the reality is, we live in a free market society. The wealthy working people have earned their right to live in the city. They went out, got an education, work hard, and earned it. I shouldn’t have to worry about being accosted. I shouldn’t have to see the pain, struggle, and despair of homeless people to and from my way to work every day. I want my parents when they come visit to have a great experience, and enjoy this special place. 
 
 Keller does not propose a solution to San Francisco’s complex and intractable civic conundrum, though he does seem to cite approvingly the controversial “sweeps” of the homeless during the recent Super Bowl festivities: 
 
 I don’t have a magic solution … It is a very difficult and complex situation, but somehow during Super Bowl, almost all of the homeless and riff raff seem to up and vanish. I’m willing to bet that was not a coincidence. Money and political pressure can make change. So it is time to start making progress, or we as citizens will make a change in leadership and elect new officials who can. 
 
 After facing significant backlash against the post on Twitter, Keller appended an apology for his use of the term “riff-raff”, writing that the word choice was “insensitive and counterproductive”. 
 
 As of publication, however, he has not reached the next stage of the tech bro homeless rant cycle. First comes the deletion of the post. In 2013, startup founder Peter Shih deleted his 10 Things I Hate About You: San Francisco Edition rant from Medium after the backlash reached such a fevered pitch that posters featuring his photograph were posted on telephone poles around the city. 
 
 Next comes the apology tour. In 2015, startup CEO Greg Gopman attempted to make amends for his own anti-homeless screed (he described the homeless as “the lower part of society” and “degenerates [who] gather like hyenas” and bemoaned the “burden and liability [of] having them so close to us) by launching a program of his own to “solve” homelessness. 
 
 (Gopman’s plan never went anywhere. One city hall official told the Guardian in 2015 that the entrepreneur’s plan to house homeless people in domes “remind me of a dog house”.) 
 
 In an email to the Guardian, Keller said that he was writing an additional blog post about the issue. 
 
 “The thesis of the post was that inaction by the city and officials is not working. We all as citizens of San Francisco need to figure out how we can improve the city and address the homeless and drug addiction problem straight on,” he said. 
 
 “I in no way meant to vilify homeless or drug users, my frustration was that we as citizens don’t feel safe. The amount of violent crime is increasing, and it affects everybody. What specific measures is the city taking to proactively help the homeless and drug addicted? 
 
 “Instead of crucifying me, we all as citizens should be crucifying the city and elected government officials for ineptness. The status quo is not working.” 
 
 They don’t care about nobody but themselves ... If you got money, you just want to grab anything you can get Bercé Perry, homeless resident 
 
 Of course, Keller will likely only be the pariah of the internet for the next few days, while San Francisco’s homeless people are made to feel like the pariahs of the city every day. 
 
 
 
 “Being homeless is like being the germ of the city. That’s how they treat you,” said Bercé Perry, a homeless resident of San Francisco. Perry was standing outside his tent in an encampment underneath the Highway 101 overpass. The 42-year-old said he had been homeless for about one year, and he has little patience for the distaste some people have for his presence in the city. 
 
 “They don’t care about nobody but themselves,” Perry said about the wealthy tech workers who’ve moved into San Francisco. “If you got money, you just want to grab anything you can get.” 
 
 A few blocks away, Michael Jones, who has been homeless for about three years, was frustrated that people are homeless and hungry in a city with so much wealth. 
 
 “I see all the food that they throw away,” Jones said. Still, asked about how he feels about wealthy tech workers, he would only say, “I don’t judge anyone.” 
 
 Madeleine McCann, 27, had some more pointed words for tech bros who disapprove of her. McCann has been living in a tent under the highway for about a month, ever since her van was towed, leaving her without a roof. 
 
 “They need to be a little more tolerant”, she said. “It’s not like they’re going to let us come shower at their house.” ||||| jackie no edits uudelleentwiittasi Marc Benioff 
 
 I want to help fix the homeless problem in SF and California. I don’t believe this (Prop C) is the best way to do it. I support Mayor @ LondonBreed and @ Scott_Wiener’s commitment to address this the right way. Mayor Breed was elected to fix this. I trust her.https://twitter.com/Benioff/status/1049449472428634112 … ||||| click to enlarge Justin Keller/Twitter 
 
 Man has blog, internet bites him. 
 
 
 
 I am telling you, there is going to be a revolution. People on both sides are frustrated, and you can sense the anger. The city needs to tackle this problem head on, it can no longer ignore it and let people do whatever they want in the city. I don’t have a magic solution… It is a very difficult and complex situation, but somehow during Super Bowl, almost all of the homeless and riff raff[1] seem to up and vanish. I’m willing to bet that was not a coincidence. Money and political pressure can make change. So it is time to start making progress, or we as citizens will make a change in leadership and elect new officials who can. 
 
 the marketplace of ideas 
 
 @FitzTheReporter @RoyMcKenzie look at the headlines of your paper. We as citizens are concerned about out safety. pic.twitter.com/RAodbFVbhP — Justin Keller (@johnny5sf) February 17, 2016 
 
 @MadMaxFlapper @FitzTheReporter @RoyMcKenzie I'm not a rand rich dude. I ride the bus 2 work. I went to a state coll. I live in a studio apt — Justin Keller (@johnny5sf) February 17, 2016 
 
 @edzitron @w2crystallake I am asking for change. I am asking for the city to address the problem. No longer ignore it. Your vilifying me? — Justin Keller (@johnny5sf) February 17, 2016 
 
 Justin Keller is no Greg Gopman. He did not live in city-subsidized affordable housing while calling the city's homeless "hyenas," all before morphing into the self-appointed savior of San Francisco street people.He's not even a Peter Shih — he did not write a listicle calling the city's women "49ers" (in Shih's world — that is: 2013 — that could have been a compliment; it's every kind of bad now).But Justin Keller, startup founder , is a tech guy. And he has a blog. And he's a tech guy who on Monday typed out an ill-advised lament in which he states, in the three years he's been a San Franciscan, he has become increasingly alarmed by the "homeless and drug problem that the city is faced with" — which means that he's now and forever in the same category as Gopman and Shih, whose rants about city life earned them internet scorn."I’ve been living in SF for over three years, and without a doubt it is the worst it has ever been," he wrote, in what he describes as an "open letter" to Mayor Ed Lee and SFPD Chief Police Suhr (because homelessness is a political and law enforcement problem, natch)."Every day, on my way to, and from work, I see people sprawled across the sidewalk, tent cities, human feces, and the faces of addiction. The city is becoming a shanty town… Worst of all, it is unsafe."He went on. And so did the rest of us , on Twitter and elsewhere, where Keller has earned the all-too predictable scorn. First, a reminder: while anecdotes and the number of tents on 13th and Division streets suggest that San Francisco's ever-present homeless problem has become noticeably worse in the past several years, statistically, things are the same: The "official number" of street people in our fair city has hovered around 6,500 for the past decade. (Plenty of homeless advocates beef with that figure; considering that the city's school district counts over 2,000 homeless kids in public school, it's almost certainly low.)But that's not news to you. And it wasn't news to Keller, who says that his motivation for the post was to draw attention and take action — and not sit silently by, like all of us hardened San Francisco citizens now taking him to task.Keller, he writes, had his parents and other family in town for the long weekend. While he reports "countless times that we were approached for money and harassed," Keller was driven to the blogging point by a series of incidents: one at the Tadich Grill, one outside, and the denouement at the Sundance Kabuki movie theater. You can read it for yourself, but the gist is: Keller encountered people, who may have been intoxicated, who were yelling or taking their shirts off or shoving people, and he and his people were "terrified."He makes no mention of the causes of homelessness or what San Francisco has done in the last decade to address it, only to be stuck at the starting point — he just asks someone to please do something.There's a real possibility that Keller is trolling us. We are, after all, easily trolled, and our reaction is a total troll's reaction, bro. But there's an earnestness about Keller that leads us to believe he's being honest... even as he slogs through unintentional irony (such as his Super Bowl comment below.)Showing off his liberal arts education, he finishes with a flourish, name-checking Plato'sand noting that Socrates warned us that we're headed towards tyranny. Or something.He has, predictably, spent the last 14 hours or so defending himself onTwitter. Now that's tyranny.Can a startup guy install blog software that comes with a warning that noticing and then blasting a longstanding, well-noted, and clearly difficult-to-solve societal ill is neither original nor wise nor productive? We'd invest in that.At press time, Justin Keller was still a tech guy, Mayor Ed Lee was still mayor, and neither homelessness nor mental illness had been solved. Check back in the next decade for updates.
– Two of the world's top tech CEOs disagree about how to ease homelessness in San Francisco—a city where extreme wealth glitters alongside roughly 7,500 living on the streets, the Guardian reports. At issue is a proposed tax on wealthy city businesses that Salesforce CEO Marc Benioff supports and Twitter CEO Jack Dorsey opposes. "I want to help fix the homeless problem in SF and California," tweeted Dorsey on Friday, but this tax isn't "the best way to do it." Retorts Benioff: "Which homeless programs in our city are you supporting? Can you tell me what Twitter and Square & you are in for & at what financial levels?" Dorsey calls Benioff's questions "distracting," while the Salesforce CEO scolds his fellow exec for fighting "a relatively small tax." Called Proposition C, the ballot measure would tax big-city companies by varying amounts—roughly 0.5% on the gross receipts of businesses making over $50 million a year, per CNN. The goal: Raise up to $300 million annually for shelter beds, mental health treatment, and housing, which would double current city funding. But San Francisco's new mayor, London Breed, also opposes Prop C, citing accountability and oversight issues as well as possible layoffs or companies fleeing the city. Meanwhile,Twitter is among companies benefiting from the so-called "Twitter Tax Break" for having offices in rougher neighborhoods, per CNBC. Now Benioff, Dorsey, and Breed are apparently huddling: "We're all talking now and aligned to fix this issue..." tweeted Dorsey later Friday. "Will keep everyone updated." (This homeless man charging a phone at Dunkin' got a rude surprise.)