The notion that Palestinians outside Israel have any sort of right to be part of Israel is nonsense. If there is never a Palestinian state, then the Palestinians will remain stateless vagabonds and it will not impact Israel in any way.
That said, I think there will be a Palestinian state. It will merely be composed of Area A alone plus Gaza. Palestinians living in Area B will be pressured over generations to move to Area A. Areas B and C will become permanent Israeli land.
Either way, it is exactly what the Palestinians deserve. I enjoy watching bad people get what they deserve.