Incidentally, if you want to get a sense of how difficult 35 years of settlement-building have made the Israeli-Palestinian conflict to resolve, I highly recommend that you look at David Makovsky’s proposed map of land swaps. This mostly shows Israeli settlements that would be annexed to Israel, the offsetting land to be sent to Palestine is largely adjacent to the Gaza Strip:
This is a very strange-looking border. I don’t want to say it’s unworkable. The hurdles to the alternatives—dismantling the settlements or a binational single state—seem to be even bigger. But this isn’t easy. And the difficulty isn’t in identifying equivalently sized swathes of Israel to hand over to Palestine, it’s in imagining how these jigsaw-puzzle countries are going to fit together.