Let us not get carried away with Jews. The majority are "Reform" jews. And this group in my opinion are commies. We have both "reform" and "traditional: jews in the neighborhood I live in. I have no respect for the "reform" jews, who like submarine Catholics only show up at church/synagogue on high holidays.
I think you’re generalizing. I think a lot of American Jews are liberals because of where they live, not under what banner they worship.
I mean, you could say this about Italians, given names like Coumo, Ferraro, Pelosi, etc., but the real reason for this is not their Italian heritage but rather their New York and California locations.
It just so happens that most American Jews live—and have lived—in mainly Northeast liberal cities for the past 150 years. While other nationalities spread out across the country, they stayed put, except for the California and Miami ones, who established liberal enclaves there, too.
But I would also point out that a great many of American Jews aren’t observant in any way. They may call themselves Reformed but are actually atheist, and that’s where your commies are.
I wouldn’t even single them out here, but that is why these people were killed—because they were Jews. And unlike the vaster numbers of American Jews who are irreligious, these folks were, and killed in temple. So they took the brunt of the hatred a few non-Jews have for non-religious, atheistic, Leftist/Marxist/Communists.