The rest of the world is not going to be bullied into submission by one guy. If you can't take care of your own problem then eventually the world will turn away from you. This has the obvious potential of spiraling out of control but Trump is first and foremost the responsibility of the US population. The rest of the world will pick up the pieces. But he needs to be kept inside the lines or he'll run into people who are not just going to say 'yes' to his every whim.
But "not getting bullied" is and entirely different thing than thinking a US civil war would be a good thing for the world or "reduce the global threat" (which is just bonkers).
Like, we're all amateurs on a web forum, but it's best to avoid monomaniacal, first-order thinking.