One can take some hope that Germany recovered from its descent into fascism. But that was in a time where there was no social media and other brainwashing technologies embedded into the population.
They also had 45 years of being split in half with one side being under a totalitarian government, and the other being partially administrated by three other countries with troops stationed there and the threat of thermonuclear war should ever the two sides get in a disagreement.
Also, many of the same ills that caused fascism the first time are starting to re-emerge. You can see this in the rise of AfD.
My hopes are tempered, to say the least.