There is a tremendous amount of delusion with liberal Jews. I had an interesting discussion with my cousin's husband, who is Jewish, that really pointed this out. He is an intelligent, wealthy, corporate executive, and a raging liberal Democrat. He actually admits that Nazism and fascism are both left-wing ideologies, but yet he'll still say that Jews are better off belonging to left wing politics than right wing.
Wow, talk about denial. I also know there is a lot of loyalty to the Democrats of the past. Seriously I believe that there is a block of Jews that vote Dem, because Republicans were anti-immigrant (and at least in part anti-semetic) in the 1920s. Then there is the block who vote Dem because “FDR saved the Jews” (not true, but try telling them that).