Resolved: Saying Zionism = racism is equivalent to saying criticism of Israel = anti-Semitism.
I don't deny that one can defend Zionism or Israel in racist ways, and hopefully is equally uncontested that one can attack Israel/Zionism in ways that are anti-Semitic. But likewise, just as I think we ought to affirm that one can criticize Israel without it being anti-Semitic, it must likewise be affirmed that one can defend Israel (and Zionism) without it being racist. The extreme positions are equally poisonous to the discourse. Persons concerned with the former need to be concerned about the latter (and vice versa).
(Inspired by this post)