The argument shifts to the difference between "at birth" (in the statute) and "after birth" (in FAM), with the summary conclusion being that nobody made citizen by operation of a statute that recites "at birth" is naturalized. The argument also rings of "They are made NBC pursuant to the founders leaving it to Congress to define NBC."
There is an unlimited supply of people hidebound to their conclusion, and it is literally impossible to shift them. Even a SCOTUS ruling against them, with Cruz as a party, would be met with disagreement.
I may be a "Birther", but I see a bunch of "Pretzels"...they're all twisted up.