What does “subject to the jurisdiction of” mean? Everyone seems to be equating that with diplomatic immunity, but that seems to arise from the state department’s historical interpretation of the term in determining citizenship of children of foreign diplomats.
Wong Kim Ark doesn’t answer the question, because it doesn’t even try to interpret the term. Instead it assumes that the framers of the 14th amendment meant to incorporate English common law of citizenship. Maybe that’s true, but that’s not what the Court thought the term meant in the Slaughterhouse Cases two decades before that.
Justice Harlan also had a well reasoned dissent in that case, noting that English common law on citizenship arose out of feudalism and wasn’t necessarily an appropriate source on the question.
I think it’s unlikely this will get overturned, but it’s not a frivolous argument.