> For example, as recently as a decade ago you could find a small but not negligible group of Israelis who identified as Zionsists yet were in favour of a multi-national (or non-national) Jewish/Arab state,

This

The evil ideology is political Zionism

The idea the Jews should live securely in the Levant is not obnoxious.

The idea of a racialised state where "only the Jewish people have the right of self determination" is utterly repugnant

https://www.cnbc.com/2018/07/19/israel-passes-law-granting-o...

Even political Zionism is minimally defined as supporting "a home for Jews in Palestine"[1] Not only does it not require any ethnic exclusivity nor even for a national identity, it doesn't even require an independent state in the contemporary sense. Some of those who identify as Zionist take it to mean only that Jews should be able to live with some form of self-determination in Palestine, and so when they hear "anti Zionist" they take it to mean supporting the expulsion of Jews, which, of course is not what many of those who identify as anti-Zionist want. When some anti-Zionist hear the term Zionist, they take it to mean support of an exclusive ethno-national Jewish state, which, of course, is not what many of those who identify as Zionist want. The term could mean something very different to different people, to the point that the same political position can be called Zionist by some and anti-Zionist by others, which makes the term mostly useless.

[1]: https://en.wikipedia.org/wiki/Types_of_Zionism#Political_Zio...