The most amazing thing to me is that people with very high skills are put in the same lottery pool with people doing administrative jobs. What's even more tragic (for both America and the graduates) is that the more skilled they are, the less likely they can find a commensurate job back in the developing home. On a personal note, the prospect of deportation put a heavy strain on my relationship--I'm sure many have to go through the same ordeal.

The idea isn't that they can't get a job or contribute and thus need to leave. The point is that Americans should be preferred over foreigners for these jobs. Not supporting or denying this logic, just explaining that your point isn't really addressing the argument.