“The two types of citizenship are citizens by nature and citizens by law”
By the way, I’ve never checked, what is the birther answer to why we call citizens created by law post-birth “naturalized.” To me that term means “made natural.” How is that possible, when it’s done through the law, instead of God acting via the union of male and female gametes, or whatever you think makes for natural born citizens? Is it merely a term of art, with no real meaning?
You have a misunderstanding. It doesn't mean "Made Natural" it means "made LIKE natural." How is it possible for something to be "made natural" when it was not in fact, natural?
"Naturalization" is exactly like adoption. It is a case where someone is not originally part of a family or society, but are officially accepted as though they were.