Earlier quoted context omitted.
No the government can't just revoke a visa because Trump doesn't like your face, the reasons must be based in law and there is the pesky thing called due process that needs to be followed. I am honestly flabbergasted that people think the government can just do willy billy.
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I do agree that if someone would come to my country on a visa for studing, I don't think its okay for them to protest stuff. It feels disrespectful even if i'm aligned with that persons politics.
On the other hand, i expect us all to have a acertain amount of personal freedom on our planet and protesting itself is part of this, same as free speech.
In this context of the USA: USA is a country grifted by us europeans. It has land, resources etc. Just because USA now fully formed, somehow I do have the feeling that I should be allowed to also become a USA citizien (not for the social system, USA is fucked) but for the reason of also benefiting from that land (great nature, lots of space, etc.).