USA will continue to be richest and the most powerful nation in the world. On a geopolitical level we are in a perfect location and 1 language.
Where Europe fails is they have too many languages.
Discussion
Europe fails by unifying itself into a giant unelected socialist authoritarian regime
Yes you are right but I suspect even with a free market capitalist type government they would fail as Europeans are too far brainwashed and they would struggle to let go of their identity and language.
You need a common language and similar identify to succeed.
I don't think you need a common anything, that was the lie to sell the EU, competing with the dumbed-down USSA corpo-empire flattening distinct Eurpean cultures into a big McState.