“Perhaps worth considering but Arabs will never consider the expulsion of Arabs from Israel into the new state.”
Then make it not a choice if negotiating for a two-state state solution, With Greece we made the mistake of leaving some Turks in Greece in exchange for some Greeks in Turkey. There are virtually no Greeks left in Turkey today while the population of Turks in Thrace has boomed. There are are even a couple of Turks in Greek government. Then the Turkish state shamelessly claims they are “persecuted” while ignoring that Turkey have nearly completely erased Greeks from Turkey in pogrom after pogrom.