Also, Fascism/Communism/Authoritarianism didn't BOOM happen in Germany, it was a proccess over like, a decade (for Germany, probably longer for Russia), and THEN BOOM it happened.
Pretty much.
The better parallel is with WWI germany-- where they were brought in due to diplomatic ties with austria, over the death of the arch-duke, then subsequently turned their sciences and resources toward the atrocities of war.
The WWII parallel would be a hypothetical future, where a fallen US is given powerful world sanctions to never again be a world superpower, choosing to ignore that, becoming ever more militarized again, and taking American Exceptionalism to dizzying heights. (EG, WW4, not WW3)
Only thing though is that we're the one hosting the UN site, which, bar the destruction* of the UN building/complex, I don't see happening anytime soon. The most ideal place for the UN would be floating in international waters somewhere, but that's just in an ideal world.
*Which I DON'T advocate.
For the record, I dont feel that Trump's major terror is going full Hitler himself---
Rather, the resulting economic implosion of the US on a world economy that relies too heavily on the US Dollar as a common exchange format would bring the rest of the world down so hard, that world war would become inevitable.
Actually, I see him more likely to cause a World War by getting angry at something and launching nukes on a whim. He hasn't exactly shown his 'cool, calm, and awesome' side and negotiating skills yet.
Also, him going all Hitleresque is exactly the kind of thing our checks and balances in the government are supposed to guard against.
Heck, congress (both sides of the aisle even) just did a bill that would make sure he can't do something like wholesalely ban all muslims.