You don't necessarily need to, because he can be played like a guitar quite easily. Just look what Iran did. Look what Europe did when Trump wanted them to join the war (nothing).

The western world has already started to adapt, building a world order without the US in the center. Trump is quite helpful here, basically driving the process. Biggest question is, who gets the best pieces, Europe, China, Russia, India? Trump's burning through political capital that was built over decades, but it's a zero sum game so he essentially sells it for cheap prices.

The US want to concentrate on themselves? Sure why not, great Britain as well was a super power not to long ago. Nothing lasts forever and we most likely see the beginning of the end of an US dominated world here.