What we seem to be forgetting is that the Palestinians had the opportunity to participate in the country when it ess just formed, and instead decided they would leave, join the armies of Egypt, Lebanon, and etc... And storm back in liberating "their" homeland.
They got their butts spanked good and hard for the effort, and have been acting like petulant spoiled children ever since.
The Palestinians in the entire history of the region have NEVER had self rule, so their claim of ownership is dubious at best. At worst it was trading a European government for abb Israeli one. At best, it wad abb opportunity to enact their own changes to the government and participate to a degree they never had before.
Instead they decided immediately to try and kill everyone. I have zero sympathy for the Palestinians. They made the bed, but cry that they have to sleep in it.