There is a lot going on here.
The suggestion that the Mufti developed his hatred for Jews due to the Zionists has definitely been claimed – but has it been proven?
De Haan’s murder was a tragedy – as was the actions of many of the Zionist leaders during WWII. nothing ca justify this.
The Zionist leadership bear responsibility for shmading thousands of children, war survivors, eastern immigrants etc..
Nonetheless a non frum Jew today is far far better off in E Israel -or even the parts that are definitely chu”l such as Eilat – than a non frum Jew in America, has far more chance of his children marrying Jews, being able to read from a siddur, occasionally going to shul
Although this was not the Zionist intent nonetheless there is an element of truth in this.
What if questions are unlimited …. I mean what if Achashverosh had not married Esther?
The Satmar rov was convinced that if not for Zionism mashiach would have long been here; he viewed them as responsible for the holocaust and lack of redemption afterwards.
Nonetheless, it is possible that if for the aspirations to establish a state there would have been unlimited Jewish immigration, and in turn thousands of lives may have been saved, on the one hand it was undoubtedly orchestrated by God himself; nonetheless there might be Divine Retribution for those who played a role.