People commenting here keep speaking as though Americans all decided to do this. Trump didn't even win the majority of votes of those who voted. And those who voted for him had only the most nebulous idea of what doing this would mean. It meant something like "Those people who never treated us with respect will get what's coming. If they don't love us they will fear us."

This happens all the time. "Russia did X." "The UK just did stupid thing Y." "Why are Germans suddenly authoritarian again?"

There are always lots of people who disagree with the actions of their government. Some governments -- the US government increasingly so -- punish dissent. Russians, for one, have almost no say over what their government does. Americans in general are not making these terrible decisions. Some cabal is, but even the Republicans, who have all the power at the moment, are mostly just knuckling under to decisions they know are terrible.

I know it's tempting to blame and hate people as nations, but I don't think it helps. In fact, it's how we got here in the first place: firebrands telling nitwits that everyone in Europe or New York City or wherever hates them.