I’m picturing a Venn Diagram with a large circle of “Anti-Semitic Socialists” and a smaller circle of “Jews” — and I’m picturing the smaller circle being almost entirely within the larger circle. There is a lot of self-hatred out there on the Left.
It’s no more complex than atheist cultural Jews hating the observant ones. They’re at war with the God of Abraham and anyone who espouses him. Christians aren’t beloved of these individuals in the least, either.