In respond to statements like this I always hear from Zionists that Jewish people are the oldest ancestors of the land and therefore they deserve to live there. I then remembered that Jewish people were removed from Eygpt and migrated to the land that is now Israel, so surely there must have been someone living there already when they went there? I couldn't have been that the land was completely uninhabited when they arrived.
I started reading and watching up on Canaanites, who were the people living in that area (including parts of what is now Jordan, Syria and Lebanon). In the Bible it's mentioned though that the Israelites wiped out all the Canaanites, killing everyone including mothers and their children (ironic when you realize their whole claim to this land is based on a genocide and they complain about Arabs wanting to do that to them to get that land back).
Actually, Canaanites were not exterminated and their DNA has been found in people currently living throught that region, from Jewish people currently in Israel to Arabs from surrounding countries as well (93% of Lebanese DNA matches with Canaanite DNA). Therefore, their whole claim of being the oldest anchestors of that land is completely bogus and therefore Arabs have as much right to that land as Zionists believe they do.