Hopefully it will collapse much faster than USSR.
Aside from evident economic failures of technocratic nazisocialism, to build a real national identity it takes many centuries. There is no such thing as European nationality currently, neither there is a dominant ethno-cultural group (contrary to Russians in USSR)
We have Frenchs, Germans, Poles, Italians, Finns, etc.
Every historical attempt to unify this contintent through violence and coercion ended in abrupt bloody failures. I dont' see how it can play out differently this round.
Especially with the Von Der Lying bitch, where Hitler and Napoleon failed...no way.