Please, I would welcome an explanation.
Here’s the explanation for the whole mess: Torah. Is it true? Is there a G-d? Infinite, so he can create and sustain the Universe, and personal: so that we can be in a relationship with him. And, if he exists, has he spoken to us in terms that we can understand? If so, then we are obligated to acknowledge him and walk in his paths. This is not complicated. Leftist Jews are Jews who have abandoned the Torah. They retain the cultural affectations of Judaism while denying the power of its source. There are many [understandable] reasons for this, given the history of persecution and holocaust that have characterized the Exile. In other words, “Man, this Torah has gotten us in hot water for so long it’s high time we gave it a rest!” As Larry King said, “look, I don’t believe in G-d, but I’m totally into being Jewish.” That’s the reason why there are leftist Jews. Once you detach from the Torah you begin to drift, and eventually you find yourself in direct opposition to the word of G-d. This is what also happened to Christianity at large. So now, we have a remnant in both camps whose basic values are drawn from Scripture. They recognize that without the Torah there would be no Western Civilization. Their numbers are growing, and if there is any hope to save America it will be found there.