You are being ridiculous by pretending that Israel in antiquity is at all relevant to the current colonial project that was started within living memory. If the families originally came from Palestine then the people are Palestinian regardless of whatever ethnostate bullshit the settler government might have spouted to blur the lines. I am saying that any settler families who have gone to occupy Palestine in the last 80 years should return to their home nations. Anyone else is Palestinian, whether muslim, jewish, or otherwise. And would stay to live under the Palestinian nation.