Where did Hitler's Anti-Semitism come from?

Hitler's anti-Semitism was influenced by a combination of personal beliefs, societal factors, and historical context. He absorbed anti-Jewish sentiment prevalent in Austria and Germany during his youth, which was exacerbated by nationalist and racial ideologies in the early 20th century. Economic hardships following World War I and the Treaty of Versailles further fueled scapegoating of Jews as responsible for Germany's misfortunes. Additionally, Hitler's own experiences and warped worldview led him to view Jews as a threat to the Aryan race and German society.