What's the difference between Far-Right antisemitism and Far-Left antisemitism?
Far-Right antisemitism is hatred and fear of Jews qua Jews, all Jews.
Far-Left antisemitism is hatred of what they call Zionists, those 98% of world Jews who either live in Israel or support Israel, or have no problem with the idea and existence of a Jewish state.
If there are 13M Jews in the world,
Far Right antisemites hate all 13M of them.
Far Left antisemites hate "only" 12,740,000 of them.
So what is the difference between Far-Right antisemitism and Far-Left antisemitism?
Far Left antisemites believe they have a really good reason to hate most of the Jews, unlike Far Right antisemites who are much less bothered to look for good reasons to hate Jews.
* It's quite possible that I've exaggerated on the side of caution the percentage of Jews who don't favour Israel.