Not to understate the actual reason that I find authoritarian controls on speech outrageous: I 100% agree that it's wrong to revoke visas over politically-protected speech.

I just find it easier to communicate "a basic sense of self interest" to the sociopaths who are happy to see state power used against strangers their country is hosting. If the state can do it to those folks, they will eventually do it to you and I.

It used to be the case that treating strangers and foreigners -better- than we might treat ourselves was a goal for humans. You can read it in the religious texts of the assholes I live around who pretend that their religion should rule all the subjects of the land they have occupied.

It's interesting to see the positive views of benevolence, tolerance, hospitality, and justice toward strangers in many of the ancient Mediterranean cultures. I wonder how typical or atypical those are across time and across cultures, and what kinds of limitations are placed on them.

Apart from Exodus 23:9 and similar commandments (and specific stories of hospitality in the Bible), I think of the idea of ξενία xenia from ancient Greek culture, and then the proverbially famous Arab and Middle Eastern hospitality today.