Semantics, matters not.
You are trying to brush it aside as a "semantic" issue, and it is not. There is, and always was, a very real and distinct difference between a "Citizen" and a "Subject."
"Subject" is Monarchist, and requires all the inherent foundational principles of Monarchy, up to and including "perpetual allegiance" to the King. Common law only deals with Monarchy principles, not Republican Principles.
Therefore, *OUR* "citizen" is not based on Common law, it is based on natural law principles consistent with Republican government.
Our understanding of "Citizen" comes from Vattel, not British common law regarding "Subjects."