Most Jews in America have pretty similar views on Israel as Bernie does. Jews are b'teva baishonim, rachmonim, gomlei chasodim and since it's b'teva it makes no difference if they are frum or not. So this is what happens when you have the inborn teva of rachmonus without any Torah to guide you; it creates the phenomenon of the bleeding heart liberal Jew.
You will never find any other ethnicity of people who are more concerned with the welfare of the enemy who wants to kill them than they are with themselves. It's a uniquely Jewish phenomenon.
You saw when he harasssed her twice or maybe three times that "you spoke at AIPAC and never mentioned the Palestinians' plight!" Does that even make sense? Is there even logic there? "You went to a tailgate party at Lambeau Field and you never expressed your support for the Bears!"
Sorry to make light of it, but I am making a kal v'chomer.
Plus, he realizes his gaff and he corrects himself, "You BARELY mentioned the Palestinians," because he realized he had said "you NEVER mentioned the Palestinians" which he realized was wrong.
Anyway, it's frustrating, very frustrating. On the other hand, it really is amazing to see how different Jews are and how powerful the effect of the neshama has even when it is in a galus within a galus.