“We all agree that Obama’s mother was a citizen. And it appears that you understand that as a citizen, if she gave birth to a child within the country, that child is a natural-born citizen.”
Actually, there is a large consensus that since he was born the subject of a foreign country, that excludes him being a “NATURAL BORN” citizen and merely just a CITIZEN.
I don't see where you get that argument. If that was a "large concensus", we wouldn't be arguing over whether he was born in Hawaii or not, because it wouldn't matter since there is no dispute that his father was Kenyan.
Why would citizenship in our country be subject to the laws another country establishes for their citizenships? And why do you think such a law would effect the "natural born" part, since "natural born" relates to where a person is born?
If having a foreign parent whose country grants citizenship to their children would effect ANYTHING, it would be "citizenship", not "natural born". But there is nothing in the law which suggest either is the case.