Here is a hypothetical situation: The U.N. decides to take pity on the people of Central America and Mexico, and relocate them to the United States. They are given the land west of the Mississippi, thereby cleaving the United States in two. It might be called North Mexico, or The United States of Mexico. Whatever. Now, answer these four questions 1. Would you fight to get our country back? 2. How long would you fight until accepting this situation as the new status quo? 3. Would you encourage your children to fight? 4. Would you encourage your children to accept the new status quo? For us, of course, this is only a hypothetical situation. But to Palestinians, it is all too real. Yet many Americans try to pass it off as something they should accept, and simply move on. Accept the 64 year occupation as the status quo. If you are of that mindset, answer the four questions honestly.
An inexact comparison, but for the sake of argument... clearly you should fight after the partitioning but at a certain point, if you've not succeeded in pushing North Mexico and deporting the settlers, then you've lost. Do you think you are still going to get rid of North Mexico after 60 years? By then you've had a couple generations grow up in the only home they've ever known, It seems at that point, if you couldn't push out North Mexico when it was getting started, you are sure not going to do it after 60 plus years. Your choices are either genocide (nuke North Mexico and try to kill everyone in it) or accept the status quo. Which makes sense to you?
The biggest difference here is Palestine was not a state. It was open land that anyone could settle. While it was mostly settled by Arabs, Jews lived there going all the way back to before Rome controlled it. Although their numbers were much smaller than the Arabs. Now land was bought and owned, Jews began moving there in greater numbers back around the 1880's and they began buying up land from Arabs living there and from many out of state land owners. Jews didn't take any land until after the UN divided Palestine and Arabs began attacking Jews almost immediately after. They were intent to drive the Jews off the land.
It would depend on the new status quo. The circumstances you describe are too hypothetical for me to take seriously. I mean, the last time the status quo shifted radically in my neighborhood, I wasn't alive to notice. Would I have fought against statehood? I don't think so. Would I have fought against becoming a territory in the first place? Probably. Or maybe not? I don't know. It's hard to say from where I'm sitting. I don't think I'd be all, "No, the white people can't come here."
Your hypothetical situation is not based on reality since the UN has never done what you are hypothetically proposing, Not even with the Israeli=Palestinian conflict.