Our citizenship rules apply within our borders. Other countries have other rules. NBC is derived from English common law, and I doubt the Germans use it. But I don’t know - we’re not discussing if Obama is a NBC of Germany.
The issue here is of natural law that the Constitutional Founders base the natural born citizen clause for would be future presidents to Constitutionally qualify , which has nothing to do with laws made by Congress or man. Positive law is not in play or is English Common law which is too man-made laws.
But I don’t know - we’re not discussing if Obama is a NBC of Germany.
No, we are discussing the heart of the issue is what is a natural born citizen, that is universal law in every country on Earth.