Abraham Lincoln once asked a witness during a case "Suppose you call a tail a leg. How many legs would a sheep have?" The Witness replied "Five." Lincoln then said "No, four. Just because you call a tail a leg, doesn't make it so."
Congress cannot make "natural citizens." Those are made by nature. Congress CAN make "naturalized citizens." Those are made by laws.
Congress can ADOPT people into our national family. It can't make them blood relatives. That is beyond the power of Congress.
Sorry, doesn't make any sense.
The idea of citizenship, and who qualifies, is a human invention, not handed down by God written on stone tablets.
What you are saying is that given certain assumptions common to our society, certain people have a natural right to citizenship. Which is true. But those assumptions themselves are human inventions, not natural laws.
The Romans would have agreed with you. Except they believed some men were "natural born slaves." Law of Nature.