I can explain that. The biggest single contributor to the defeat of the Nazis was Communist Russia. Thus many Jews of that generation came out of the war with an enormous loyalty towards the USSR.
Hmmmmm....
How does that explain the very rich and never at risk Jews in America -- who've been here for many generations?
I think the answer may lie in explanation offered, that the Lost Tribe of Israel, got lost only because they were the stupid tribe -- which ended up in America..
We are saddled with all the most stupid Jews - while the rest of the world benefited by the smart and "righteous Jews"...
That explanation actually makes some sense, doncha think?
Semper Fi
No matter how you resolve that question, it isn't very relevant to "why many Jews of that generation came out ot the war with an enormous loyalty to the USSR." I would say that any Jews foolish enough to have such loyalties had them, or had them to passed down to them (think "Red Diaper Babies"), from the time of the Bolshevik Revolution, when the Reds were seen as the "progressives" who overturned the czarist tyranny under which Jews were persecuted severely. The bulk of such Jewish loyalties to the Soviets were cultivated through carefully contrived propaganda, which deftly avoided mention of the antisemitism in the USSR which continued into the Communist era.
It's also notable that Jewish (and other) Communists around the world largely remained loyal to the USSR during the period from 1939 to 1941 when the Soviets and Nazis were allied through their mutual non-aggression pact.