It’s common for reporters to ask leading questions. I don’t always like it, but a reasonably intelligent interviewer can respond by saying “ No, I don’t think that, I think this other thing.” Oren thinks the entire region belongs to Jews no matter where they were born and he clearly must believe that Israel had the right to expel Palestinians in 48 or there wouldn’t be a majority Jewish state inside the 67 lines. But Oren also thinks he has a right to live on the West Bank. Regarding his own rights as a Jew they are absolute in his mind.
Palestinians, on the other hand, have to negotiate for whatever portions of the land he and other Israeli Jews might be willing to give up. So yes, Oren has to think his rights to the land are greater than those of the Palestinians. His position doesn’t make sense otherwise. They aren’t even discussing whether Palestinians have the right to move back inside the 67 lines.
Imagine Oren’s reaction if Chotiner asked why Palestinians didn’t have the right to build homes inside Israel. A perfectly fair question, but from Oren’s POV it would be ten times worse than what Chotiner did ask.