[cs_throwaway]

This won't convince anyone who wants to pause all immigration.

However, if you want to allow some immigration, you can make a case PhDs in computer science from Carnegie Mellon, which is what he's talking about.

These are kids who were already world-class coming in and become even better by the time they graduate. It is paid for by taxpayers, for which they should be grateful, and it is done in a context that builds admiration for the country.