Well, it won't be you or I determining this. It will be ICE, and they apparently have been 'led' to the issue, by a person(s) who have a vested interest. The landscape has changed in the USA regarding immigration/work status. Will be interesting to see how this plays out.
my 2c worth: I think it is a bit of a stretch to suggest that a permanent base of foreign workers, ostensibly taking jobs from Americans could be considered kosher. I don't know the answer, but it really doesn't pass the smell test. Imagine a bunch of Americans taking up all the OZ slots, or Frenchmen taking all the London slots (after Brexit
).