Hitlers Aryan ideas, and anti-semitism, go much further back than WW2. When he lived in Vienna, he studied a writer who was obsessed by the idea of 'racialism', and was basically prophesising an Aryan race that would one day rule the world, very similar to the KKK's current 'plan' for america. Anti-semitism in the media had been the norm in Europe for years, even the French under Napoleon blamed the Jews for the Panama Canal fiasco, and most of the rest of their problems too.