[moehoward]

IMO. They are subject in the transitive verb sense but not the noun sense. As Senator Jacob Howard (co-author) stipulates a "person" born here from a foreign national is not a "citizen".

For instance, Article 4. Section 2, points out that Citizens of each State shall be entitled to all Privileges... etc. but A Person charged in any State with Treason, Felony, or other Crime,..etc.. In other words, citizenship is not a requirement in order to be "subject" to the law, being a "person" is.

[BikerNYC]

IMO. They are subject in the transitive verb sense but not the noun sense.

Well, isn't "subject" being used in the verb sense in the 14th Amendment, not the noun sense? It is customary to put an "a" or a "the" (or "his" or "her" in connection with a King or Queen's subjects) before subject if one intends subject to be a noun.