Some form of European integration seems unavoidable in the long run. Ideas like ethnic nationalism, racial hierarchies, and eugenics would've faded away more gradually without their sudden discrediting OTL after WW2, but they likely would've declined in either scenario.

Once Europe is mostly democratic and territorial disputes are mostly resolved, Europeans would be able to reap the benefits from free trade and investment, intra-European migration and travel, and the economies of scale that come with a common market.

However, integration would be much more even without WW2 and Soviet dominance in Central and Eastern Europe. Rather than a core with similar living standards starting in Charlemagne's old Empire (France, the Low Countries, Western Germany) and expanding eastward and southward, an alternate EU would have to form with more varying levels of economic development, democracy, and geopolitical interests, probably with more Venn diagrams and asterisks than OTL.

What would the first mini-EU groupings be? Would they still form one organization that includes the majority of Europe's countries like OTL? Some combinations that unify later on could be:
- Netherlands, Belgium, and Luxembourg
- Latvia, Estonia, Lithuania
- Germany + Austria
- Italy + Balkan States (possibly Albania, Yugoslavia, Bulgaria)
- France + UK
- Scandinavia (Sweden, Finland, Denmark, Iceland, Norway)
- Austria, Hungary, and Czechoslovakia
 
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