You are going in circles. What do these professors say about all these "foreign" students enrolling in their programs? That they're all in a head-long rush to get back to the motherland and earn 60-70% less than they can here?
I answered that already - the foreign student trend will not last.
so who fills the seats then? believe me, US higher education engineering programs are worried about that. that's my point, without domestic enrollment, they are going to be in trouble a few years from now.