The bottom line is that the US Constitution does not define natural born citizen.
Everything outside of current US law is simply opinion for debating societies.
Current US law accepts as “citizens at birth” those who are born on the land or those who are the offspring of at least on qualified US citizen.
Anything else is conjecture.
Everything INSIDE current US law is simply opinion for debating societies.
Once again, US Law cannot change the meaning of the US Constitution. US Law does not have that authority. A Constitutional amendment is required.