Not going to happen. Europe is barely holding together as it is, and Russia/China are using just as much energy and resources in undermining it as they do in the US.

At best Europe can stick somewhat together enough to form a working defence and foreign policy for its own territory and near neighbours, but it is never going to be a global force.

Brazil, India, and South Africa might instead, creating a world where democracies and autocracies can get along fine with a tacit mutual non-intervention agreement

They have enough on their plate protecting themselves. Effective militaries are not made in a few years. (Not without shifting your whole ass economy at least.)

Africa and South America and Asia better keep their eyes peeled.