What you say is true of Obama, Sr. Unfortunately, his mother was not and IF Urkle was born in Hawaii he is NBC no matter the father’s status. IF he was born in Kenya as one of his grandmother’s claims then he is NOT natural-born.
Today if he were born in Kenya to an American citizen even underage as his mom was then he would still be natural-born but not at that time since the American citizen mom had to be of age to pass on citizenship. That has been changed by Congress.
So the case still boils down to WHERE he was born and we don’t really know. There are conflicting claims by family members as to the hospital where the blessed event took place.
I’m beginning to wonder if Dr. Frankenstein had a 20th century project. Or he was beamed in from an alien ship.
RE the two parent issue: Not that it is definitive, but w/ Clinton, Obama, McCaskill ‘vetted’ McCain, the language specified TWO US citizen parents. IIRC, Obama tried to change it to one and failed.
So, even if he was born in Hawaii AND the parents were not married, it seems like there is a good case for Obama lacking Natural Born Citizen status, although he would be a native born citizen. [I hope for change in the Executive office!]