“And there is no “sole” in “natural born citizen”.”
Natural born means born of citizen parents, inserted into the Constitution by our birther Founders. They listed three requirements for being president, and that is one of them. So, although it means nothing to you, it obviously did to them. And, it is the law.
Where in the Constitution is "natural born" defined?
Oh, it isn't. The two citizen parent thing is something you just made up.
No, it doesn't.
"...So, although it means nothing to you, it obviously did to them. And, it is the law."
It means that a naturalized citizen can't be President. That has nothing to do with one's parents. Not does it have anything to do with "sole allegiance".