Jewish guilt. Unfortunately we tend to side with the underdog, no matter who.
Also, because of the Holocaust we're supposed to identify with any refugee, regardless of their situation. Anyone who opposes is a Nazi (which is why Jewish liberals hate Trump).
Ronald Reagan broke through the FDR Jewish mindset and garnered almost 40% of the Jewish vote.
Trump managed 25%.
Seems like anti-Semitism is forever descending
on America but always lands in Europe. It’s a
pity American liberal Jews refuse to see that.