I have long said this was the real solution to the problem, but the GOP want the illegal immigrants - 1 for the bogeyman and 2 for the cheap labor to enrich their overlords.
Farmers remain pro-GOP despite knowing that a crackdown would spell disaster on their livelihood, because they know the con and that the GOP will never act.
The wild card here is Trump who lies, misspeaks, lies to cover misspeaking, claims he actually did something, will do something he never intended just because he said he would do it, etc etc - i.e. he is old dynamite that is sweating nitroglycerin. The really dangerous thing is you have a pyromaniac in Stephen Miller ready to get his hands on the sticks.