Aside from your statement being untrue, invaders invading and then becoming a “majoritY” doesn‘t make it their land. Prior to world war 1, going back for 500 years, the Ottomans who were Muslims themselves, invited the Jews to resettle back in their ancestral and religious homeland. During those 500 years, nobody in the region, including the Ottomans who ruled the land, and Arabs both Christian and Muslims did not mention or recognize a Palestine or Palestinian people. In fact, the name Palestinian referred to JEWS of the region only, until Arafat decided to hijack the name and apply it the Arab land squatters he ruled over. Prior to that, if you called an Arab a Palestinian, it would be considered an insult as the term “Palestinians” applied to the Jews of the region only.