As a citizen adopted as an infant by an American military family, I took keen interest in citizenship issues in grade school in the 60s and 70s. This was an era when “anyone could become President”, but I knew I could not. There is no doubt that the Civics classes in that era taught that NBC meant A) born in the U.S. and B) of two people who were American citizens.
RE: There is no doubt that the Civics classes in that era taught that NBC meant A) born in the U.S. and B) of two people who were American citizens.
Well, if that definition is correct, John McCain should not have been the GOP candidate because he did not meet criteria A.
Assuming your recollection is correct, I don’t believe that how your grade school teacher chose to teach the definition of citizenship is binding on the rest of the country.