I suspect that instead of treating the US as a bully, and pushing back, we are treating the US as a troll, and just looking away instead.
We'll go trade with other countries and stop giving the troll the attention it craves.
You could also try a bowl of mashed potatoes on Donald’s head.
This was one of the very embarrassing things that happened to Donald as a boy, done by Freddy Trump (his late older brother), when everyone had enough of him.
The Grey Rock Method, but at the nation state level.