There are many answers to the 3 shavous
1) We don’t pasken like aggadata
2) Its only when the goyim keep their oath and don’t cheper jews. Once there was a holocaust thats gone.
There are others too. i had a list of 3-4. Now to be fair the Satmar reba disputed these. But those that held these views were not around then anymore to answer the reba. Furthermore, the reba disputed these after the medina was founded already. At that point in time it was a mute point since it was a done deal so why argue with someone who had the bully pulpit like the satmar reba who if you dared dispute him, his mafia would go after you. he himslef was a huge tzadik but his kanois stirred the mafia around him.
As far as what agudah held, it was diverse. Ther were some to the left and some to the right. Many of the rizyna rebas held zioinsm is al pi torah and others held not like that and you had people in the middle. The imeri emes held R Kook zl was tzadik who was just misguided due to his tzidkus as you see in his letter. Many many big gedolim gheld of R Kook inlcuding R isser zlaman and R aryeah Levin. of course the chaftez chaim held of him too. Move to today when the battle is different and its isn’t about a state rather its about secularism. I think some of it is mistrust vs real issues while some of it is that the system grew into an unprecndted system where being charedi means to learn a whole life and not work because of the way things were shteled avek by the chazon ish years ago. . Its hard to break from that. But at the need of the day agaudah shita today is more to the right in terms of joining the army.
Re zionisim itself its machlokos and both sides have strong torah sources