Some interesting asides, though:
1) re: "United States of Europe" (turns it, that would actually happen!) wasn't just the dream of idealistic liberal youths of that time; it was also quite popular with many Nazis (see Speer's memoirs) and Vichyists.
2) There's also one character -- the brilliant intellectual experimenting with every intellectual idea and mixing in his own. He would seem at home in Mussolini's Italy/Petain's France. In many ways, he seems to resemble Vilfredo Paretto. I'd wager 'L' and he are the most dangerous archetypes: while Nazis would certainly "purge" both in the end, they would be instrumental in their rise to power, and would seem like the biggest "surprises" to many.
Personal note: the German emigre archetype is really interesting; I'm a former-USSR Jewish emigre to the US, now a naturalized citizen -- yet I "knew" in a sense, that the US fit my temperament and psyche long before walking off the plane and through customs. Free Utopia/Dystopia novel idea: a union of polities where each individual is free to take a specially crafted a personality test and then is allowed (by choice) to emigrate (free of any charge/transaction costs fully covered, etc...) to another polity that matched their personality (in addition to other routes of of immigration -- legal, but not unconditional or cost-free -- to avoid breeding a pure monoculture.)