Except that Israel can't even stay within the confines of the lands taken from others and given to the soon-to-be Israelis. Conquered peoples having their lands taken from them isn't such a new thing. We have plenty of reserves here in Canada, especially where I'm from, where little Anishnaabek enclaves exist as semi-sovereign groups.
But even that isn't enough for Israel. Settlements continue to be built, Palestinians displaced, and the ultra-zionists pandered to with total disregard for the rule of law. So it's not just a historical territorial thing, it's an ongoing, active seizure of land by Israel and the repression of Palestinian territories to such an extent that nearly half of them are unemployed, and live on only a couple dollars a day.