The stupid party doesn't know that American universities have become leftist indoctrination centers. The more time spent in them, the more leftist young pliable minds become. The GOP should instead insist on an IQ test of some kind and only give green cards to the top quintile. That certification test might lead to an implosion of the brick and mortar indoctrination centers for all students.
While this is true, there are circumstances that happily reverse this poisonous tendency in this case. These are not undergraduates studying from textbooks. These are mostly doctoral students in the sciences or performance arts. They not only get no general ed indoctrination (they only take courses in their specialty, and these are entirely subordinate to their research or performance), they experience the difference that a mostly honest, mostly free, mostly economically free society makes. Further, successful scientists or performers are often very creative and entrepreneurial. You have to run a lab, or continually market your talent.
I know hundreds of them, and typically, they love America. Many want to become Americans, and for the right reasons.