Cracking down on legal immigrants, skilled immigrants makes no sense. That’s what built America. Cracking down on illegal immigration makes plenty of sense. I hope the administration can see the difference.
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It makes sense when thy engage in political activism or become dissidents. Just because they're skilled doesn't mean they can't be legally causing troubles at the same time.
No country tolerates foreigners moving in and acting against the country that took them in. Well, maybe Germany does.
When you emigrate somewhere on a visa, you're a guest in the country who's tolerated as long as you follow the rules and contribute to society, the moment you start causing trouble with protests or become a nuisance, you're out. Simple.
It can well be the case that the visa has provisions that allow rescinding it for the things that you are talking about, but I'm pretty sure that they are discretionary, not mandatory, so no need to cower at the words of these students.