I have been thinking about that mindset for a while now. I see a big jump in crime happening. Their already illegal in this country not obeying our laws, if the work dries up, business', homes and cars start getting broken into. Once that competition starts getting to heavy, muggings and home invasions.
Call me crazy, but that is what I see the logical conclusion will be to punishing employers. I'm for building a wall, boosting ICE and Border Patrol numbers and start raiding the day worker known sites and let the deportations begin (BTW, thought about that too, the day laborer sites, get 'em for loitering as a precursor to catch them as illegals; wouldn't want to tranp on their "rights" now would we??). Following that, start in on punishing employers (landscaping, pool maintenance, you know the bigguns that can be nailed right off the bat.