Quite possibly.
The day will come when they tell us that a child of a Gambian mother and a Mongolian father living unmarried in Australia at the time of the child’s birth is a natural born citizen of the United States simply because they “believe in America”. They believe in it so fervently that they entered it illegally but that’s ok. You’ll be called a racist if you don’t go along.
If you consider the law already accepts a man to *self identify* as a woman, it's not that far of a leap for it to allow someone to self identify as a natural born citizen.