If we are willing to give as many green cards as jobs there wouldn't be a legal problem at all.But it always come back to the realty, and that is they should not be there in the first place, so no all argument are in vain, get them out of the country and let them come in legally.
And now that they're here, it's inefficient and inhumane to send them back for a paper they could pick up at the courthouse.
We are the problem, not them.
Tom