"honestly if you're going to claim only those who managed to be the first to arrive in an area can claim it as a homeland"
That is hardly the case I'm making. A people isn't a real thing, it's a purely invented concept with very little basis in a loose coupling with (mostly inaccurate) genealogical connections and in some cases a shared belief in an imaginary overlord. So there can literally be no correct answer for the criteria on which "a people" defines its homeland. A person on the other hand is indisputably a people of one and is entitled to call wherever they were born their homeland (or anywhere else they please). But having a homeland does not entitle you to anything but some personal feels regarding the space and no other rights and privileges, including the right to be there or to deny the right of others to claim a homeland. I'm just pointing out the best histories of the jews indicate the people most of them THINK they are descended from aren't from Israel so it is a little silly to go militant and aggressive on others who settled there.
Most of those Jews and Palestianians have more arabic decent than anything as well as ironically common ancestors just as most American Jews are more European than anything. Claiming to be a part of any ancient people is ridiculous as several thousand years of breeding will make you genetically part of almost of every people not just the one you have a card in your wallet for.