The comment at 70 is admittedly ambiguous, and socialismisinsidious uses the wrong term -- "native-born citizen" rather than "natural born citizen".
You have read it narrowly per your own inclination. But as a vouchsafe of your own reading comprehension skills what are other reasonable ways of reading that statement? There are others, they are reasonable. I'm asking you to prove YOUR good faith intellectual curiosity by finding the alternate interpretation you have missed.
Not at all. The poster very clearly indicates his father's citizenship wouldn't matter if he were born in the USA. Period. There is no other possible reading.