First the magically multiplying descendants of the surplus peasantry of Egypt and Syria who moved in the 19th to 20th centuries to what is now Israel and the Disputed Territories have no claim on the land.
Second the small number of true native Arabs could have had their national aspirations met if they had accepted the state offered to them back in 1948. They rejected it. History, especially the history of their many murderous deeds since then, does not entitle them to a do over.
Third every square inch of Arab Muslim territory is stolen land. There were Jewish Arab tribes, they were exterminated. There are a few Christian Arab communities remaining but they are oppressed, dhimmified and being expelled from regions they populated for 2,000 years. There is no place in the Middle East that Islam is in control except by violence.