All those supposed "people" are like your celebrities who promised to leave the country if Trump gets elected. Nobody left.

This is also a good example of a bad strategy from a game theoretic perspective.

They want X and threaten: if I don't get X then I'll do Y which is going to be bad for you and me. They don't get X and think: well, what's the point of sticking to my threat if I lost anyway. And that's a bluff. Trump would do X nonetheless and by that prove he's willing to suffer himself just to make you suffer as well. This is going to be remembered next time he makes a threat.