Dragonlady
Designing Woman
..and patrolled by the military
All you need to do is to ensure no one will hire them once they get there. They go home pretty quickly after that. Republicans welcome them and hire them. Democrats arrest the employers, fine them, and they quit hiring illegals real quick.
It's so much faster, easier, and cost effect to go after the employers. They're the guys who are causing the problem in the first place, so make THEM pay for the problem they're causing.