Off the top of my head a significant portion of Jews live in LA, NY and Southern Florida.
Jewish elite uses Holocaust/Nazi to gain sympathy/advantages but this victimhood shapes the rest of the Jewish population and makes them blindly against authority/majority/elite. These people don't view the Jewish community as a very wealthy and rather selective community. They still think Jews are underdogs and thus they align with the Left.
Or Jews especially in Western nations are a diverse group from many different homelands so they inherently side with Left. The Jewish-American "reconnecting with Israeli roots" is fairly new. Israeli-Jews seem to side with Republicans