Why did Adolf hitler and Nazi party hated jews?

• Jealousy. Some Jews were successful and held influential positions in Austria and Germany in the 1920s and 1930s. At the same time, the world was suffering in the Great Depression. For various reasons, including war reparations for World War I, Germany was being hit the hardest by the worldwide economic depression. Successful Jews were envied and blamed for "taking German jobs."

• During World War I, Communism was on the rise. Lenin's revolution had forced Russia out of the war. The German Army at times faced near mutiny among their own troops. This contributed to Germany being forced to sue for peace. Since some socialist/communist leaders were Jewish this was exploited as another reason for Germans to hate Jews. Hitler often spoke of Bolshevik (communist) Jewry. There is still a strong association in people's minds between Jews and leftists.