“The Constitution nowhere DEFINES the term “natural born citizen.” “
Then where is your argument?
Legal precedent shows several cases that define it as being born in the US.
Courts must operate according to precedent, but the country does not. The law is what those who wrote the law meant by what they said. This is true of the Constitution and all other laws.
The evidence indicates that, in the minds of the authors of the Constitution, a NBC is one whose parents were both citizens at the time of his birth.