Yes.
But they are collectively naturalized.
They were collectively naturalized in 1917. No one born in Puerto Rico after that day has been or has needed to be. Black people and American Indians were also collectively naturalized at different points in American history. Are all members of those groups not natural born citizens?
So citizen at birth does NOT equal natural born Citizen. This some made up definition.
Yes. You made up a definition.
Go read dozens and dozens and dozens of government document that say anyone SINCE Congress passed the law IS collectively naturalized.
Tool.