In the Amendment in question itself, the language used was “subject to the jurisdiction thereof.” Since he was not a subject or citizen of our country, he had to be subject to the jurisdiction of another country that isn’t ours.
If it is read otherwise, then anyone can come here, and as long as they claim allegiance personally, with no input from We the People at all, they are in like Flynn.
That puts them in control, instead of the people of this country.
That is not tenable.
And the fact that we allowed them here as guests has nothing to do with it. Our imprimatur for citizenship has not been given.
That language in the 14th Amendment requires no renunciation of allegiance to the other country. So if Marco’s parents were in the country legally, they are subject to the jurisdiction of the United States. An Ambassador from another country, ore anyone with diplomatic immunity, for example, would not be subject to the jurisdiction of the US. An the Congress can easily extend that to illegal invaders as well.
However, if the Supreme Court rules on this and says you have to be born on American soil of American parents, I am OK with that. It eliminates Ted and Marco, but that is OK. We still have Trump, Carson, Bush, Christy, Paul, Kasich, Fiorino, Huckabee, and Santorum to pick from.