Those are not global students. Those are people who are already living in the state. Foreign students typically pay the most tuition possible with no financial aid, subsidizing everyone else.
so all those foreign students could become "not foreign" by merely coming here for a tourist visit and overstaying? Quite the idea. I will suggest to a few college-age friends to claim to be illegal. Why pay more when you can pay less? Plus, there is no way to verify a LACK of citizenship or of SSN.