Here’s a way to stop it - fill buses with the illegal immigrants and drive to DC and dump them on the White House lawn.
As for buses, hire a coyote to reconfigure the insides of a few cargo planes, like they do with U-Haul trucks and such. They could probably shoehorn in over a thousand per flight. Dump 'em on the tarmac in the D.C. airports. I'm not a cruel person, so I'd suggest each get $10, a vending machine burrito, and a Metro farecard.
Actually let Hollywood and every Politician pay to ship them all back to where they came from. Let their pocketbooks feel the pinch.