We can argue about lands but UN divided it the way it saw fit. Israel said OK, Arabs said No. Arabs tried to slaughter Jews, Jews crushed Arabs.
Arabs tried to destroy Israel, Israel destroyed Arabs and gained more land.
Point is, they lost after trying countless times to defeat Israel. They will continue to lose unless someone sobers up and says "They cannot be defeated, let`s make peace or keep dying". I`m sure they`ll just keep dying rather than make peace.
And by the way, Palestinians are not a race, they are just a bunch of Arabs who came from surrounding arab states to live in Palestine with Jews and Druze and Christians.
They never had no claim to the land, not the way Jews had, and i`m not arguing that even.
They lost.