The inherent mistake in this plan is assuming Palestinians just want a better future for themselves and their children.
But they don't care about that at all.
The only thing they want is to murder Jews and conquer their land. It's their sole reason for existing.
They're willing to sacrifice themselves and their children for that goal.
You can give them the best economy, the prettiest beaches, the nicest resorts, the most beautiful buildings; they don't care about any of that.
If you don't agree to them murdering Jews, they won't accept it.
The only thing that's negotiable for them is the method of murder. On a good day they might agree to shooting instead of beheading.