The greatest reason for the German Reich's failure in WW2 was the occult garbage and Nordic LARPing of Himmler and the upper-portion of the SS.
Like it or not, National Socialism was Christian from its outset.
Mein Kampf and endless speeches, as well as records of churches in the Reich support the fact that Christianity was promoted.
Had Hitler stuck to his guns, rather than letting Himmler waste time with Atlantis and meth, the war would have ended differently. Worse yet, the actions of the more sadist and esoteric officers allowed the (((modern world))) to levy criticisms on the NSDAP that are exaggerated or simply limited to lunatics in the ranks, who everyone else hated.
Now the question, what caused Himmler to fall for the pagan meme?