Hitler exploited their fears because of the massive debts that Germany took on in the 1930s after WWI, and Hitler used the Jews as a easy scapegoat. The logic they pieced was: they are the people that are in higher education, the banks, the arts etc. That's when people naturally fell prey to his charm and inevitably turned against the Jews because they where villanized for the things they didn't have, in times of moral scarcity their fears can be amplified.
In global trends,in different countries a scapegoat easily be demonized by a potential leader to insight fear and hate.
