Obama is kowtowing to international opinion more than any other President in history, bowing and scraping to the international NGO elite, and the world still hates us.
If the world saw us as the new Nazi Germany, they'd be falling all over us to appease us, like they did with the actual Nazi Germany.
Considering how reluctant the Europeans have been to take on two-bit dictators in recent decades (Idi Amin, Robert Mugabe, Saddam Hussein, Slobodan Milosevic), I doubt we have to worry about them launching a crusade against us. Not even to get back at us for saving them from Hitler and reviving their economies with the Marshall Plan afterwards.