[ap99]

Yes, a visa can be revoked just that easily.

It's a guest pass.

When getting a visa you're basically asked to agree to America's terms of service. Violations can be found pretty easily in the fine print if someone is really looking.

From there it's the same administrative work to revoke and deport as it is to say ban someone from Twitch for saying the wrong thing.

[laughing_man]

They can revoke your visa for supporting terrorist organizations. And they make the list of terrorist organizations, so...

[ap99]

And you have a problem with that? Why?

[laughing_man]

Because adding an organization to that list is (effectively) entirely at the whim of the current administration. They could add your Scrabble club if they wanted to.