Disclaimer, was an international student for many years, not a law expert
I think realistically, an administration has many ways to make it incredibly difficult to recruit international students even without a blanket ban…
Such as making overseas visa applications even more difficult (it already happened between US-China and various Muslim countries during Trump’s first term), making legislation that require more from unis if they have international students, general societal xenophobia, …
I’m not sure if an actual blanket ban would be permitted under US law though
Edit: that’s just my take on whether a blanket ban is feasible. If you ask me personally I recommend every international student to get their rear end out of the US as soon as possible so…
Absolutely not. There is a reason I’m personally noping out of the US and told every international person at my former workplace to do the same so…