“of parents not owing allegiance to any foreign sovereignty”
And of Obama Sr?
Did he owe allegiance to any foreign sovereignty?
***
Yup - Kenya was a colony or protectorate of the UK at the time.
Per the British Nationality Act of 1948 (which was the applicable law at the time):
(1) Subject to the provisions of this section, a person born after the commencement of this Act shall be a citizen of the United Kingdom and Colonies by descent if his father is a citizen of the United Kingdom and Colonies at the time of the birth ...
According to the the principal framer (John Armor Bingham )of the 14th amendment, particularly
Citizenship and the Citizenship Clause (Defining who was a citizen of the United States) and by Mr. Obama’s
own admission he is not a Natural Born citizen.
It doesn't matter that British law considered BHO Jr. a citizen, what matters is that his father was not a citizen of the US, and owed allegiance to a foreign power. Which foreign power does not matter and neither does whether that power considers children of it's nationals to also be its nationals.