Maybe the Pals should be offered a shítload of money to move to other Arab countries, then Israel gets Gaza and WB, gives back the Golan and is told "right, that's yer lot. There's your ethnically pure state, so build a wall round it and stay in there. And no more alliances with Wahabbism, and supporting AQ and ISIS". Everyone signs peace deals and goes home. Or to their new homes, for the Pals.
This may not be entirely serious.