Been down this road a thousand times.
You need to read carefully The 1790 Act.
It deals with NATURALIZATION.
In the act, the phrase “natural born” is referring to the children born of folks who themselves have been Naturalized through this act.
It is the CHILDREN of these now naturalized “Citizens” who would now be considered “Natural Born”, as both parents would now be considered “Citizens” at the time of the child’s birth.
See #45
“It deals with NATURALIZATION.”
Correct. That is in its name. However, it also just happens to define, by way of allusion, just what is meant by “natural born”, a term used in the Constitution.