detroit/san diego businesses shut doors students skip class thousands demonstrators take streets cities across unite state thursday protest president donald trump immigration policies activists call day without immigrants highlight importance foreign-born account 13 percent u.s. population 40 million naturalize american citizens trump campaign estimate 12 million illegal immigrants play fear violent crime promise build wall u.s.-mexican border stop potential terrorists enter country number participants thursday protest could determine many sympathetic business owners close shop working-class immigrants forgo pay day tell english teacher go school say understand say rosa castro 13-year-old u.s. citizen detroit march 26-year-old sister one several undocumented family members whose future concern since take office last month republican president sign executive order temporarily ban entry unite state travelers seven muslim-majority countries refugees order put hold federal court immigrant right group also express alarm federal raid last week round 680 people suspect country illegally san diego logan heights neighborhood 44-year-old undocumented business owner identify lucia fear deportation tell reuters close nutrition shop day cost 200 community frighten speak say things bad us new president advocate call attention case one el paso texas federal agents arrest transgender woman leave courthouse seek protective order domestic violence virginia governor terry mcauliffe write homeland security secretary john kelly express concern immigration enforcement state cite nbc washington report agents arrest people outside church operate shelter cold sympathy march rally hold cities include raleigh north carolina austin texas thousands join demonstrations chicago detroit los angeles fashion district comprise 4,000 apparel outlets showrooms manufacturers cover 100 block downtown half shop area retail core close along 40 percent one large flower market area say district spokeswoman ariana gomez southern california grocery chain northgate gonzalez market say give employees 41 store corporate headquarter permission use pay personal time participate washington 50 restaurants close include high-end eateries far aware immigrant employees choose take day say ruth gresser 57 own four pizza restaurants district columbia area three relative novices old lady make pizza say refer pentagon half dozen food outlets force close staff members join protest defense department spokesman say national restaurant association criticize walkouts say statement organizers disrupt workplaces hard-working americans try provide families austin hundreds chant say loud say clear immigrants welcome march city hall state capitol lawmakers republican-controlled body consider measure punish sanctuary cities shield immigrants federal agents immigrants across u.s. skip work school anti-trump protest