You posted your own wishful interpretation of what the author of the 14th meant. A legal immigrant is not a "foreigner" by any law or precedent, even if not a citizen, so your argument fails. They have made themselves subject to the jurisdiction of the United States in a ay a tourist or a diplomat or an illegal alien has not.
And your suggestion that Jim Noble get naturalized might have been facetious but it is clearly a dodge of his refutation of your feeble argument. Natural-born versus naturalized; born natural versus made natural; there are only two types of citizens.