> lived in that region first
The whole premise/approach of "here first" is deeply flawed, and I think this blackly humorous cartoon [0] is a relevant critique of it.
Tying things back to earlier discussion, here's the thing: One can either say a place is a "liberal democracy" or it can disenfranchise people due to events thousands of years ago, but you cannot do both.
Democratically speaking, people whose lives are principally controlled by a government today deserve (for their hardship) a say in its operation today. What happened even a single generation ago is irrelevant to that relationship of duty and obligation.
Hmm, you may or may not chuckle a little at the tale of a Jew and a Palestinian visiting sperm banks on either side of the wall: https://www.youtube.com/watch?v=AuvvfnjgZlM