Many companies were founded by immigrants. First they have a student visa and then a work visa. Without that they just go back to their home nation and make they company there.
> Eric Ruark, director of research at Arlington, Va.-based NumbersUSA, which advocates for limited immigration, said Mr. Trump could use an executive directive to tighten the U.S.’s Optional Practical Training, or OPT, program.<p>> The OPT program gives foreign graduates in fields like science, technology, engineering or math the right to find jobs in the U.S. for up to 36 months, depending on their degree subject.<p>> Mr. Trump could roll the time limit back to the original 12 months, the threshold until it was expanded under President George W. Bush in 2008, and tighten the eligible fields of study.<p>Come study here, then GTFO.<p>> In addition, Mr. Ruark said the president could end a provision announced under President Barack Obama in 2014 that allows spouses of H-1B visa holders to work in the U.S.<p>Sigh.<p>I don't think the solution is "lets make lives shittier for skilled immigrants". Just end the visa at that point.