@gwit "Palestinian refugees from the Romans", what are you even talking about? There was no Palestine then, it was the Roman Province of Judea. Where Romans destroyed the -wait for it- jewish temple in Jerusalem. Islam wouldn't even exist for another 600 years or so, btw. The Al-Aqsa Mosque was actually built on the temple ruins. Peak colonizer behaviour right there. And there is actually evidence of shared genetic ancestry among major jewish diaspora groups.