A Natural Born Citizen is born to US CitizenS ANYWHERE ON THIS PLANET OR "BEYOND OUR SHORES".
The page prior to this one describes the Naturalization of New Citizens immediately after the founding of this country and enacts the process by which they can become citizens. This law that you deem irrelevant is the very basis for the citizenship of countless millions of Americans whose ancestors became citizens after the founding of our country.
It spells out the Naturalization process, who is a natural born citizen as well as who is not a citizen by birth and most importantly it was written by the Founding Fathers of this country.
But all that is irrelevant to you.....