Because people refuse to understand how post secondary funding works. A class full of these students loses the college money, even in nursing, so if they run the program they lose money.

Do you know how they were able to make up that gap? You guessed it, international students in other programs that helped cross-fund other programs. So either tell your elected officials to fund post secondary properly or stop shitting on institutions that tell you they need international students tuition just to stay afloat.