If one studies their Torah/Talmud which all of them are required to study, and listen to the Rabbis interpretation which all are required to listen to, and look into the history of their race which most have at least a working knowledge of, it becomes clear they are brainwashed to be spiritually entitled, and empowered to feel morally superior. That said, it would not surprise me if much of their shit was genetically based, and all else was just molding what was already inherent.