Do you really think the American empire is never to be challenged? Everything and everyone goes down after a while. Whether it‘s now is unclear, though the active resentment against the US is unprecedented.
Sadly, your comment lacks any substance to argue with, all there is are unsubstantiated ad hominems. Sad.
No I'm a realist and realize that all candidates (CERTAINLY China and Russia, but even EU if we're honest) are far, far worse than "the American empire".
It's also two different things, you might be right that China, Russia or the EU would be worse as a hegemon, but that doesn't imply that it wouldn't happen.
Being a realist would imply that you would understand that a fundamentally worse hegemon could still replace an existing hegemon.
Sadly, your comment lacks any substance to argue with, all there is are unsubstantiated ad hominems. Sad.