There is little point in trying to explain the Nazi phenomenon, and especially Hitler's(and others") hatred of the Jews by logical or rational means.It goes a bit deeper than that. To Hitler and those of his Aryan persuasion, there were 3 powerful races in the world dating back to antiquity:The Aryans, the Jews and the Gypsies (Roma people).In the contest for racial supremacy and world domination,the Aryans looked to the others as competitors and so they needed to be eliminated.To couch this mission in language the average German could understand, a mixture of traditional Christian anti-Semitic language was used, as well as biological/racial imagery (virus, sub-human, human parasite, etc). Anti-Semitic elements of the Church supported this, although likely they were unaware of the eventual dimensions involved and the fact that they would soon follow had the Nazis been victorious.Those interested should investigate the esoteric aspects of National Socialism and its antecedents.
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from the article: Why did Adolf Hitler hate the Jews?