American Jews, even the ones in Israel, seem to find it hard to vote for Trump. It is promising, through, that many are not going to vote for Hillary either, and are going to sit this out.
I get the impression from many Jewish conservatives I know that they conflate being unintellectual with being ignorant. He doesn’t use enough polysyllables or make the proper cultural references, so he embarrasses them. They won’t vote for Clinton, but neither will they vote for him.