Much of it has to do with Israel’s unacceptable crime of being successful and liberal.
Israel in particular and the Jews, in general, were dealt a bad hand and somehow, beyond anyone comprehension, managed to make it into a straight-flush. By the standards of the left, this can only mean one thing: Israel cheated. The Jews must have acquired their success without merit.
This also applies to Americans and the political left. They seem to despise themselves without much merit. People see themselves as racists for events that transpired before they were born, that were committed by people that have no relation to themselves, and completely disregard the people who fought and died to change that racist behavior.