So Palestinians are Canaanites, it really doesn’t matter what they call themselves. There have been indigenous people in the Holy Land before the Hebrews showed up, but the Hebrews did show up and have a continuous presence for at least 1500 years or so.
I am a huge supporter of Israel, the Palies need to reject hate, reject violence, and build their community.
I have no confidence in them no matter what they call themselves.
It's hard to date Abraham, Isaac, and Jacob, but the Merneptah stele about 1220 BC mentions "Israel" among the peoples in the area between the Jordan River and the Mediterranean.