Anti Israel people are not “leftists” little champie, they are anti Israel. However true Jew haters first in Europe, then in America have always been right wingers…..”Jews will not replace us” was the battle cry of the Trump inspired “Unite The Rght” rally. Now guys like you are all of a sudden Jew Lovers…..Pretty damn funny. A bunch of the thugs Trump assembled to attack the US Capitol were donning Nazi regalia. Trump is recording albums with these guys. Now Trump is is plagerizing Hitler, Mussolini and other right wing Fascists on the Campaign trail. He is your standard bearer. You LOSE again!
There are many anti-Israel people on the left (including almost all leftists outside the U.S., Canada, and Israel) and also a considerable number (almost all antisemites) on the right. There are not a lot in the political center in the U.S., Canada, or Western Europe.
Jew-hatred in and of itself is an inherently right-wing position, but one that for historical reasons (including the historical early adoption of medieval Jew-hatred by leftist Christians, radical egalitarian Muslims, and liberals a la Voltaire) is one of the most frequent forms of opportunistic right-wing political deviations by those on the left. And anti-Israel politics is one of the most frequent bridges to Jew-hatred for the left (George Galloway, e.g.) Maintaining a principled antiracist approach to the Palestinian liberation struggle that excludes Jew-hatred is one of the most important tasks for a revolutionary leftist party, and *merely* pointing out the more obvious Jew-hatred on the right (and the consequent hypocrisy of the right-wing criticisms of the left) is not enough (though this must be done as well).