The do explain why you said “they don’t want them back”. When have the majority of Palestinians come from the Egyptian part of the Sinai peninsula? Since you’re obviously taking about this “back” it implies they must come from there, right? And please do explain what that message is hinting at or implying. Why would it even matter if someone “wanted them back”?
Let me put it this way for you: Do Europeans want the Ashkenazi Jews back? Does that even matter? Can you see how out of place this sounds now?