The UN was God's tool, just like the Romans once were, and the Babylonians before that. The Bible is full of examples of God using pagan nations and organizations to accomplish His purposes.
I do not see that it was the UN who brought Israel "back into existance ". . . Rothschild capital which enabled land purchase and settler subsidies was more relevant.
But of course most here would say that G_d directed Mr. Rothschild. Correct?