> If you're worried about Trump deciding to just add all the countries, I doubt he will

I hope you're right.

> That would be a single incident worse than this.

You're assuming he wouldn't be adding them little by little, which would be many small incidents, each about as bad as this one.

> There's four years of Trump, if you don't agree with him it might be best to not exhaust your people too early.

Yes, but you also need to take care to not wait too long before you act. I'd err on the side of protesting on this one.

> Mostly that list reads as countries full of people that probably don't like us much

I'm not sure many countries in the world are crazy about the US right now. Unfortunately (or fortunately), we don't ban travel based on who likes whom. There haven't been any US terrorists who came from Iran, so what's Trump's intention with this move?

> What all seven countries also have in common is that the United States government has violently intervened in them. The U.S. is currently bombing — or has bombed in the recent past — six of them.

This move isn't going to mend any fences either.