I'm split two ways on the, "Why antisemitism?" question. Modern Libs/Progs seem to view the world through an oppressors vs. oppressed lens. If some one is successful (themselves excluded, of course), they are, ipso facto, oppressors. "The Jews" - whether business owners or Israel - are successful, which means they are oppressors to be condemned and taken out (sometimes up to and including killing them).
OTOH, there is, in the West, a deep-rooted antisemitism that seems to pop up, hold fashion/sway, get suppressed for a time, only to pop up again. Hitler, of the first half of the 20th Century may be the most recent and best know paroxysm, but as he was dying Stain was planning and about to set in motion an anti-Jewish purge. There were pogroms in Russia in the late 19th Century, and of course the infamous Dreyfus Affair in late 19th Century France. It pretty much goes back to Roman times and earlier (e.g. Antiochus Epiphanes and Hanukkah, the origins of the Jewish holiday Purim). The shock of the Holocaust drove antisemitism into the shadows for a few decades, but, to borrow from Moses, a generation has arisen that doesn't know the Holocaust (i.e. didn't live through that time and didn't experience the horror of its discovery).
In modern Libs/Progs who are antisemitic (whether or not they consider themselves to be such) the two strains are not mutually exclusive.
