Natural Born Citizen was not a term in common usage in a way similar to 35 or resident. The fact that James Madison thought that birth was the criterion of allegiance, and that to him, place was more important than lineage, shows that some of the founders did not agree with what you “know” is true. So if there were disagreements about the term, and the Supreme Court ruled in Inglis vs Trustees of Sailors Snug Harbor that children of aliens, who are protected by the jurisdiction of the US, owe allegiance and are citizens at birth.
As for your cases, you have it backwards at least in Wong Kim Ark. I have not studied the others, but Im sure you are taking great liberties to try and find a proof for your thesis.
>> “but Im sure you are taking great liberties to try and find a proof for your thesis” <<
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This can be applied only to you, in as much as all of the court cases and learned writings of the day support the two parent definition.
The question is “Why do you wish to diminish the allegiance constitutionally required of our presidents?”