Okay, but what’s to be done? What if one of these people has kids or grandkids here, when does the illegitimacy of citizenship end? What if their offspring’s parentage includes bona fide citizens?
I don’t think solving the illegal immigration problem is going to be easy, and people calling for wholesale deportation of millions of people are asking for what is politically impossible due to special interests and so forth. Because they won’t bend, they will break, and the path-to-citizenship, votings rights, and welfare state crowd will simply get their way.