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Not to be insensitive, but 6 million of them were murdered. It is reasonable to assume that those who were more caapabale of avoiding the Nazis were more affluent and likely more intelligent (again sounds harsh but probably true). If you think of a Nazi takeover of a town, who will be able to escape, the banker or the janitor?

Both the bankers AND the janitors, as well as the teachers and the bakers and the shoemakers and the tailors and the blacksmiths and the cantors and the rabbis and the butchers and the textile workers and the printers and the factory owners and the water carriers and the infants and the toddlers and their parents and their grandparents and their greatgrandparents were murdered. No one was more likely than anyone else to extricate himself from the mass hell that the Nazis set in motion. You seem to think that survival during the Holocaust was a function of intelligence and ingenuity. Your comment is glib and woefully uninformed. You need to read much more about the Holocaust.

Most American Jews are descended from those who came prior to 1923. (As a side note, Jews who came since 1945 tend to be Republican or independent.)

As for the rest of your theory, wealth could also be an impediment. Many wealthy Jews refused to leave their property, as they like so many others did not understand the genocidal intent of the Nazis until it was too late.
My mother's father tried to escape with his 4 brothers, which was made easier because they had so little property to leave behind. (1 brother died as then fled the Nazi advance through Poland in 1939, 2 died in Soviet gulags, 1 later died of cancer after mining for heavy metals in a Soviet gulag.) My maternal grandmother came from a wealthy family. She fled alone, although some of her poorer cousins separately fled to the USSR. As far as we know, everyone else died in Majdanek. My father's family used their wealth to try to help their neighbors escape, as well as protect themselves. They eventually fled.