Actually, they say: and entitled to all the liberties, rights and privileges OF natural born citizens.
It doesn't say they ARE natural born citizens
It doesn't say they ARE natural born citizens
And that is a distinction which I noticed in his post as well. Saying something is similar is not saying it is the same. His quotes refer to "naturalizing" someone, which even THEIR side will concede is not "natural born." I cannot grasp why he thinks those quotes are relevant to discussion.