I've had discussions with relatives who are German citizens about this issue. Germany is generally considered a more "progressive" country than the United States, and even their laws state that the only children born to a non-citizen parent or parents who can obtain citizenship are born to permanent German resident permit holders or parents who have been living in the country for a verifiable minimum of 8 years. And even then, to maintain citizenship they must complete a list of requirements by age 23.
The reason why I bring this up is because legal precedent in the United States is similar.
https://en.m.wikipedia.org/wiki/Unit...._Wong_Kim_Ark
Quote:
A child born in the United States, of parents of Chinese descent, who, at the time of his birth, are subjects of the Emperor of China but have a permanent domicile and residence in the United States and are there carrying on business and are not employed in any diplomatic or official capacity under the Emperor of China, becomes at the time of his birth a citizen of the United States, by virtue of the Citizenship Clause of the Fourteenth Amendment.
So even the only case that can somewhat argue the side of "land a plane here, have a baby = citizen" or "cross a river illegally, have a baby = citizen", clearly states that this right is only granted to the children of citizens or permanent residents.