to refundable tax credits fundamentally is one in support of oppression and slavery
From the left, insisting on bureaucratic empires that determine deserving aid recipients, and on unions, minimum wage and other labour laws to combat employer oppressiveness, is still insisting on an oppressive system that needs to fund you to protect the rest of us if we ask for your permission nicely.
From the right, insisting on a harsh brutal world that forces the most desperate to beg for your permission to employ them, or give them credit, entirely on the terms you command, and terms made less generous the more harsh and brutal the world, is also more direct support for oppression.
Slavery is not evil because it affected black people or provides the owner the right to piss on you.
Slavery is evil because it allows the slaver unfair market control over the slave's labour.Not only is promotion of unfair markets evil, but so is accepting slavery but wanting to regulate it to an 8 hour work day with strict limits on the frequency of whippings.
Refundable tax credits sufficient to allow people to survive without the need for others' permission inherently provides a fair labour market with the power to refuse employment offers and compete, and a fair society without undue king's authority.
Beyond evil, opposition to UBI is economically stupid. Taxes and redistribution do not harm the tax payer, as the funds flow indirectly (but assuredly) back to them. That it is economically stupid, should not cause us to understand that mere education is needed to convince opponents. Power, command and control thirst for small self centered empires can be more valuable to the self than participation in greater social financial success.
The fear of laziness
Both those who want to work and those who do not are better off with refundable tax credits. Everyone that works has always had all of their income indirectly paid by those who can't or don't want to do the work. The more people who choose not to work due to UBI being sufficient for their needs, the more work is available to those who wish to work.
Even if inflation results from laziness, this substantially benefits workers, and incentivizes a sufficient number of work indifferent people to take easy to find well paying jobs. So society gets all of the workers it needs.
Self driving trucks promise 75% cost savings. Taxis and public transportation could save 90% if self driving. Technology will fill in any labour supply shortages, and just as you prefer to live life without the need for manual collection of water and firewood, you do not want manual driving imposed on you. If wages rise as a result of choices not to work, then automation that saves us all from work, gets accelerated.
Opposition to automation presumes the nonsensical desire to return to manual water and energy collection. Generally, opposition to automation is an insincere euphemism for protecting the empire of work that you are trained to do. For actual work that you want to do or have done, in comparison, technology and processes that make that work easier or faster are always welcome.