As far as I know, what you are saying has absolutely no legal validity. If “condition” vs. “title” is a legal issue, please link to where I can read about the law in this area.
You have to read a piece of law to understand common sense? I begin to see what your difficulty is. :)
If an animal is born as a Sheep, no act of congress will cause it to be a Horse. Congress may CALL it a "Horse" but it will remain a Sheep. The Supreme Court may Decree that it is a "Horse" but it is still a sheep. Congress may pass a law which says that all dictionaries must hereafter describe the animal which is currently known as a sheep, as a Horse, but this is just games with words, similar to what your side tries to do with the words "natural born citizen."
Congress could call anyone born in January a "natural born citizen" but it would not be correct or accurate.