Europe is back into its historical power dynamics, e.g. Catherine II was Prussian and also the Russian emperor. National states in Central and Eastern Europe were an anomaly lasting 80 years. Once US accepted the return of ruling dynasties, Europe has no other choice than to follow. People will quarrel over any scraps and ideologies the elites throw at them. Nothing will stop the gravitation of German industry towards Russian resources.

Sounds an awful lot like India's elite (who ask the non-English speaking "peasants" why they can't rise up with all the English-only universities and schools).

The problem is not the general population and voters somehow feeling superior than others. The problem are the oligarchs and owners needing very badly "the worse" to be present ideologically and physically.

When the cultures and worldviews are too different the integration hassles are not worth it.