Answer:
Anti-semitism already prevalent in Europe and among the NAZI party, as well as a myth that Jewish people were the reason the Germans lost the first world war.
Step-by-step explanation:
Anti-Semitism is the hatred of Jewish people. While Hitler was forming his political views in Vienna, the mayor at the time was very vocal about anti-Jewish concepts as well as it being fairly common in Europe at the time. In regards to the myth that Jewish people were the cause of the second world war, this was obviously not the case. However, it evolved into a common enemy of the German peoples and the hatred of Jewish individuals became a statewide sponsored attack, not just a common political view.