The Israel project was misguided from the beginning, but it could have been justified in the immediate aftermath of the holocaust. Now?
European Jews* grabbing land and displacing people in another continent to create a new faux-nation, all facilitated by the British empire (with help from the French, and the already mentioned soviets) is "justified" because they suffered a holocaust! at the hands of Nazis who actually had an agreement with Zionists before the war (yes, Nazi Germany itself was on the list of facilitators, together with soviets)!
I'm not necessarily attacking you personally btw. I'm just showing that your positioning, common among some mainstream leftists today, is neither historically informed, nor logically, intellectually, or morally consistent. This positioning, precise in its "filtering", is designed specifically to score points in the mainstream right-left political theater. A theater that has staunch Zionists in every faction, to the point where Zionism was often the easiest uniting factor one can point to.
That is not to say that all apparent opposition to Zionism in mainstream politics is fake. But whatever genuine opposition that exists out there, is an opposition to factions within Zionism, not Zionism itself. And it's often an extension of local/national factional fights within that theater.
* Many were atheist and non-religious cultural Jews btw.