So the Jews the invading and colonizing people (Battle of Jericho and all that) cannot be indigenous by definition. Next.
In any case, people claiming to be indigenous must at least have lived in an area for some time. I don't think living in Europe for 2,000 years can make a people indigenous to a place on another continent.
The Palestinians who have ancestry back to the Canaanites, Philistines etc. (as well as to invading Israelites) are thus closest to being indigenous.
And, they were certainly the native inhabitants that the Covenant of the League of Nations referred to.
1. The people who became the Jewish people were one of many warring tribes in the region who largely shared the same culture. The Canaanites became the Jewish people. All the other warring tribes were absorbed into competing cultures and did not survive.
2. There is absolutely no cultural connection between the Arab Muslim "Palestinians" and the Canaanites or the Israelites. None. Zero. The culture of the present day Arab Muslims is the culture of the invading and colonizing peoples. The definition of indigenous depends on pre-invasion cultures.
3. The Jewish people have lived continuously in the territory in question going back thousands of years.
And you don't really want to argue that the displacement or expulsion of part of a group renders the entire group as being non-indigenous and without rights, do you? Because that is going to cause you some serious problems in the discussions about the "Palestinian" RoR.
Well, Arabs have been in Palestine since the return from Babylon.. See Ezra in the OT or actually before when Sargon 2 settled 4 Arab tribes in Samaria circa 600 BC.
Then of course there are the ten Greeks cities of the Decapolis.. The indigenous Palestinians are an amalgamation of all those people.. Greeks, Turks, Syrians, Crusaders..