Just Emes:
I already mentioned that your UN sevaras are faulty. No, the UN vote to partition did not bind other nations and, in fact, the British abstained from that vote.
Regardless, the Arabs did not agree.
Further, the Zionists knew perfectly well that it would take a war and sacrifice of Jewish lives at the idolatrous altar of founding their State, which it, unfortunately did.
They knew it was AT BEST a 50/50 chance that their foolish war would NOT CH”V be a massive bloodbath of Jewish blood which, B”H, Hashem spared His people.
As well, the Zionists aggressively and offensively took more than even the UN voted to allow them and against the wishes of the chareidim living there as well.