Any alien, resident or illegal, is within, but not subject to the jurisdiction of the United States. All you have to do is read a law dictionary contemporary to the time the Amendment was drafted to see how those who wrote and ratified it understood the word "subject."
So, in your view, is there a need to amend the Constitution, given Brennan’s mendacious footnote??
And yet all the king's horses, and all the king's men, can't make heads nor tails of plain English, maybe they should press 2 for Spanish version.