There was no such people as "
Palestinians" until the political need arose to create them. Jews have just as much right to the land of Palestine as the Arabs. They too have always had a presense there. Until Jews re-established the state of Israel the Arab peoples of that region were mostly a nomadic people.
It has been the acts of aggression against the Jewish state of Israel that have caused Israel to retailate.
Hamas has been the single most contentious entity in the region-They wish to create distrust and animosity for one end-to destroy Israel.