Jews are some of the most brainwashed people. Yes there are plenty of normie Jews, overall good and kindhearted people. Regardless many think the world is against them because they've had that message drilled into their heads from a young age. Imagine being told you were special and chosen by god and also that everyone hates you.
It creates paranoid people who are always on the lookout for perceived enemy's. Many really do believe they are special and are therefore are driven as fuck to excel. Their ignorance, arrogance and stereotypical behavior creates the very enemy's they fear.
It also creates group cohesion and political activism on steroids with the holocaust narrative to justify it. There aren't into manual labor which is probably why they though they were being killed in the German labor camps.
For a contrast look at how black children are raised. They are told that they not special, their fathers were deadbeat's that left them, all white people hate them. The system is racist, their ancestors were slaves. Reparations and government handouts are deserved and their only hope.
Self fulfilling prophecy's are real. Our thoughts manifest our reality's to a great extent