> If the Zionist pioneers had managed to achieve a 99% majority of Jewish population in Palestine through legal immigration before asserting sovereignty, would that pass your test?

The whole enterprise was illegitimate, because it was carried out against the will of the population of Palestine. The population did not want a foreign group of people to come in, settle the land and take over. The British colonial rulers forced Zionism on the Palestinian population undemocratically.

You keep on appealing to self-determination, but you completely ignore the Palestinians' right to self-determination on the land they had inhabited for centuries.

> Or would you just prefer to see the European Jewry perish in toto under the Holocaust and Eastern European pogroms?

The way to avert the Holocaust would have been to prevent the rise of fascism in Europe. The vast majority of Jews were anti-Zionist, and did not want to leave their home countries. The idea that Polish Jews would have all left Poland for the Middle East before WWII is just fanciful. Only a small percentage of them wanted to pack up and go to Palestine, a far-away place they knew nothing about.