Graduate school has become an immigration scam.
Foreign grad students get an F1 OPT “practical training” visa which allows them to work in the US for one year. If their degree is in a STEM discipline they can get extensions to three years.
By that time they’ve either found an H1B sponsor or they just go back and take another Masters Degree from some fly-by-night school to start the F1 clock over again.
It’s a huge open back-door to our immigration system, and a gigantic money-printing scam for the universities.
Foreign grad students pay out of state tuition. They are cash cows for Universities.
They do not complain about abusive professors, and are often abused.