The experience of the world Jewry in (pre-)WW2 continental Europe was so shockingly brutal, the establishment of the state of Israel was an inevitability.
Jews were the scapegoat driven out from cities into the desert to amend for other's sins for millenia. Some would say they've gotten used to it.
The bestial conduct of Nazis was such that even the people for whom the experience of persecution was a fact of life and indeed their toleration of the condition almost stoic in nature, came to realize they had to have a place where they are not the Other and won't be scapegoated again. And so it happened.
To paint a picture with words...Stefan Zweig, model intellectual and model European, ended his life in 1942 at age 61 in Brazil, having lost his home of 20 years in Salzburg, his beloved Europe and, in his own words, a large part of himself.
The worst exponents of Europe in Nazi uniforms and their collaborators, the "decent people" of Germany, Austria and other countries, killed the best exponents of Europe and Europeanism, over insane paranoiac deluded hate. Killed them slowly, then quickly. Indirectly, by stripping them of everything they considered theirs, then very directly in extermination facilities. The people who suffered this horror established a state and Europe lost intelligentsia and human capital it could not afford to lose. Fin.
Just five years ago, saying that the state of Israel is the problem would have you branded an anti-semite and driven out of polite society and rightly so. As a non-Jew with no skin in the game, I find the reawakening of these sentiments horrifying.