What you gave the example of Einstein was of a German Jew. The largest percentage of Jews was in Central Europe and those, including the smart ones were slaughtered.
Also, jewish-Americans are mostly descendents of those who left before the holocaust -- in the late 1800s and early 1900s due to Russian pogroms
i'm still not convinced of your point of a genetic leap, but tell me more -- I like this debate. I would want to see some kind of proof. Maybe we can fix this on WWII for Jews in Germany? Or a more recent war -- say the Korean? Do you have any statistics for any war?
The smartest Jews seem to be a blend of Jewish/German brain architecture. For some reason Germany has been a hot bed of envy. They have special words for various forms of it such as gluckschmerz, sadness at another's good fortune, and schadenfreude, the opposite. Germans mounted "envy heads" outside their doors, monster heads meant to scare away the envious. Envy leads to tribal warfare which leads to IQ boost. The pride to envy to hate to murder process is the special evolutionary pressure that led humans to develop IQ far in excess of that needed to find food and shelter, an unusual pressure in that it leaves all other plants and animals largely untouched. Another property of this special pressure is it is finely regulated at a precise level to not increase the IQ challenge too fast.
Evolution is really a two step process: 1) something must develop something new, and 2) something else must die. Everyone seems to only remember step 1.