“Most of these Jews are descendents of European Jews who for the most part didn’t protect themselves from the Nazis.”
I am not sure that is true on multiple accounts.
1. Most US Jewish immigration was pre-war.
2. Jews fought back rather dramatically in Europe. The entire “march quietly to the death” is complete fiction. In Poland and much of Eastern Europe the real resistance had ample Jewish representation. The Warsaw Ghetto, for example, held out longer than the nation of France.
I am technically an American Jew (American parents), although I was born and raised in Israel (and will eventually return, as it is my real home).
I am a bit on the “outside” but I get the impression that American Jews like the idea of Israel, want to visit, but are not particularly connected to it.
They also fought back at Sobibor and Treblinka.