Hes making an end-run around the Dems. Trump is fine with immigration, but its got to be legal and its got to benefit the US.
Mexicans and other Latin Americans also benefit the US, and Trump is fine with this. But theyve got to come in legally (that is, we have to know who they are) and abide by the rules. Thats all hes asking, but apparently even that modest request is too much for the Dems (who of course have gotten elected through the illegal votes of illegal aliens and dont want this voter stream interrrupted).
Unproven assertion that seems to be incorrect:
How are H1-Bs beneficial to the U.S.?