The theory is not even popular.
But I remember people call deslusion when people think big mom is getting defeat by Kidd and law .
โLet not forget Bonney is supernova as rival with luffy.
But muh princess ? There is no princess is here. That is vegapunk you are looking for it.
Last arc , we have orochi vs hiyori even though she did not defeat him , she get credit it by oda literally.