Do you know what adoption is? (Dumb question, but you are deliberately playing dumb.)
Let's see if the two of us together can help you grasp this concept of "adoption", and if we are successful, we will advance to the difference between a naturalized citizen and a natural citizen.
But let's get this adoption stuff sorted out first, shall we?
You are fixated on this adoption thing which I don’t see as relevant but let’s give it ago.
If Mr and Mrs Smith are adopting baby boy Johnnie and in the final court order the judges writes,
“Baby boy Johnnie shall be deemed, adjudged and taken to be the son of Mr and Mrs Smith, and entitled to all the rights and duties of the parent-child relationship.”
Is baby boy Johnnie now the real son of Mr and Mrs Smith or just a pretend son?