Bullshit. WWI happened because of interlocking alliances and the fact that the Austro-Hungarian empire had existed long after its Use-Before-Date. Germany jumped into the war because the Kaiser felt he needed to support the Austro-Hungarians.
Hitler happened because the Germans still hadn't gotten war out of their system. He saw himself as restoring German honor. The Jewish pogram was used because it was popular to be against the Jews in Europe (still is). Hitler used the death camps to get rid of all his hobgoblins (Communists, gays, Roma, etc.)
Japan decided, after beating the Russian, early in the 20th century, they were entitled to rest of Asia, except the U.S. had it big fat ass in the way and didn't feel like moving it. Much like the Chinese today, the Japanese felt they were the Asian supermen and all should bow before them, especially their fellow Asians.
There were a few religious whackjobs in the Nazi hierarchy, but Hitler and the rest of Germany paid them no heed.