There is only one way a child can become a US natural born citizen, and that is to be born on US soil to two US citizen parents.
The only factor that determines whether a child is a US natural born citizen or just a 14th Amendment citizen is what was the allegiance (citizenship) of the parents the instant the child was born. If the parents were not US citizens at that instant then the child is merely a 14th citizen not eligible to be POTUS or VPOTUS
In 1866, during 14th Amendment House debates, Ohio Representative and author of the 14th Amendment, John Armor Bingham, stated: “I find no fault with the introductory clause, which is simply declaratory of what is written in the Constitution, that every human being born within the jurisdiction of the United States, OF PARENTS NOT OWING ALLEGIANCE TO ANY FOREIGN SOVEREIGNTY, is, in the language of your Constitution itself, a natural born citizen.
8 years later The Supreme Court stated the following: “All children born in a country of PARENTS (plural) who were its CITIZENS (plural) became themselves, upon their birth, citizens also. These were natives, or natural-born citizens, as distinguished from aliens or foreigners." - 1874 Supreme Court Chief Justice Morrison Waite
