Anti-semitism is not an ideology. It is simply to make anti Jewish statements. There is an entire article here on Medium by a rabbi that explains it for the uninformed. Being a Zionist or honored by Zionists does not mean that he is not using anti-Semitic tropes. Do you know what that is? Cultural Marxism is an example. It doesn’t exist, but suggesting that a Jewish theorist spread this economic theory means it has “cultural” aspects to it. I’ll give you time to go study some of those concepts.