Would you accept the 1930's popular idealized definition of Nazism as true rather than a postwar definition? Zionism emerged in Europe, it was initially a fairly reasonable yet idealistic idea, embodied in a pamphlet by Herzl (I can show you that if you want).
Over time the implementation of Zionism deviated more and more from the idealized definition. So you need to ask yourself do you define something by claims of what is was meant to be rather than what it now actually is?
You should read the Herzl pamphlet and then compare that with modern Israel and see how they differ.
I'd respond "no" to that because the phrase "Jewish state" can be interpreted in many ways.
That's not true, I am not an advocate of states based on Sharia laws for example.
Many Muslim majority countries are multicultural.
Well I could ask what do you think would happen of Palestinian Arabs allowed Zionist Jews to mass immigrate to Palestine? They'd be destroyed and that's precisely what happened if you take a good long hard look at the past hundreds years history of Palestine.