It only requires enforcement on a few employers and jailing until deportation of a few illegals to convince the rest to leave.
Millions of people are controlled now by the threat of enforcement.
The Feds already know who they are and where they are..all those bad SS numbers that are sent in by employers.
5 Years in jail for presenting forged documents. That would help also..we need a nice big prison in the desert near Mexico.
Big, but not nice...