1st, the article was written by someone else (i.e I'm not Leo Donofrio). 2nd, check my posting in #1.
"So in your estimation, if China decided to grant automatic Chinese citizenship to all people of 50% of greater Chinese ancestry - do you think that as a result of this Chinese law, no natural born citizen of America of Chinese descent could ever be President under American law?"
Such a law would not apply to people not currently under the jurisdiction of Chinese law. Further, it wouldn't be recognized internationally save for perhaps N.K. and the like. Lastly, "natural born Citizen" is based on natural law, not "man's" law.
Vattel wasn't the first and last word on what “natural law” entails. He is not a secular saint with his words elevated to canon law beyond reproach abridgment or amendment.
And he never did use the term “natural born citizen”.