Would say his history of being anti-BDS is what’s being held against him from the progressive side.
Being antisemitic is really a lack of intelligence thing. The fact that no media outlet even challenges a war criminal like Bibi when he says shit like “All Jews support Israel” makes it so easy for anyone who isn’t even remotely curious to assume that means criticism of Israel means criticism of Judaism. Fucking insane that he’s just allowed to commit war crimes carte blanche and criticism is just responded to by some guy from Nowheresville saying “hmmm kinda antisemitic don’t ya think??” Meanwhile RFK says shit like Ashkenazi Jews were ethnically targeted to be spared from COVID. Just a complete lack of intellectual curiosity.