A key factor in the WKA case which found Mr. Ark to be a "citizen."
BHO Sr. was a foreigner who was simply a visiting student.
/As you know.
The "Natural Born Citizen" clause of Article 11 has no relevance whatsoever to the Wong Kim Ark case. It would have if and only if Mr. Ark sought the presidency or vice presidency. That case was decided solely on the basis of the Fourteenth Amendment. Ark was ruled a citizen at birth; he was not declared a Natural Born Citizen.
Watch the Herb Titus video linked to at the top of this thread. He carefuly explains the difference between Fourteenth Amendment citizenship and Natural Born Citizen.