> The United States is about half of the "collective West", the EU being the other largest single body.

The EU represents 27 sovereign states. NATO has 32 members. The US population is around 75% of the population of the EU.

And now decided to break off political, diplomatic, economic and defense ties.

I don't think this fact dawned upon you people. I mean, recently the EU basically banned the US defense industry from supplying EU's armed forces, which was unthinkable only a few years ago and it takes place during a rearmament push to prevent Russia's imperialist agenda. You can't whine about isolationism and still expect partners to still consider you relevant.