Well, St. George Tucker, who knew the Framers, served as an officer in the Revolution and then became arguably the foremost law professor and legal commentator of the time used the two terms interchangeably, in both uses excluding anyone outside the definition provided by Vattel as a definition that would exclude any possibility of any allegiance to any other country through having one or both parents citizens of another country at time of birth. The focus of all commentators was on there being no dual allegiance of any kind from such mixed parentage. This was also the view of Story in his study of the Constitution. Do you know of any authority that makes a distinction between the two phrases and, if so, what is the distinction?
Native born means born on the soil. Anchor babies are native born, but that doesn't mean they are natural born Citizens..... Or do you think it does?
Citizenship is passed from parent to child. Or citizenship is acquired by being naturalized. I don't believe citizenship happens just because someone is born in this country regardless of who the parents are.
There are two variations of the word. Natural or Naturalized. Native isn't the same thing as either.
Words have meanings.... Natural, Naturalized, Native. Neither is interchangeable with the other.