"Palestinian" Arabs are indistinguishable from "Egyptian" "Jordanian" "Saudi Arabian" "Kuwaiti" and "Iraqi" Arabs because all these titles are 20th century political constructs.
The Arabs who call themselves "Palestinians" have nothing to do with the ancient Philistines or Phoenicians.
The last guy up the rope ladder to the last American helicopter out of the embassy in Saigon was born to a family that had lived on the Mount of Olives since time immemorial.
They spoke Arabic and were Moslem. However, they had a family history demonstrating that they did not come from Jordan, Syria, Saudi, Iraq or any other place where "True Arabs" come from.
Their family ended up in a refugee camp as "Palestinian Refugees".
Now, please explain to me what the utility is in denying that man his own history?
This relationship is well described in the Bible and supports the integrity of the ancient accounts, including God's promise to bring His people back. If the greater number of Palestinians come from elsewhere to this place, we really do have to ask if maybe there's a divine reason for that.
You can dispute the Bible if you wish. I won't stop you but don't come crying to me when one of the agnostic/atheist/argumentative curmudgeons here beats up on you for your beliefs supposedly grounded in "the Law". I'm not going to be listening.