Boycott US

The US knows this and constantly works to defeat any attempts to coordinate.

Or, it did, until Trump gutted the State Department and drove out anyone anywhere near government who cared about good outcomes. There's surely still some of this going on because of pure inertia, but it will not continue going forward.

Also, the US government primarily represents collections of oligarchic powers and supranational corporate and financial powers that also have huge influence in the countries that could try to coordinate against them.

Yes, but they can still do that stuff without needing to be tied to the US geographically or governmentally. They're still tied to the US because it is a stable growth medium right now (stable currency / decent government if you're rich / etc) and makes an easy home base from which to interact with a lot of different countries, but literally all of that is coming to an end. Once things are more stable and profitable if they uproot and live somewhere else, because the US has terminal rot and has become a liability for them, they're going to move to Europe like a bunch of Russian oligarchs and do everything you just said on behalf of someone else instead.