Earlier quoted context omitted.
Surely "subject to the jurisdiction" must mean subject to any jurisdiction, or it is completely meaningless.
That’s a plausible meaning but it erases the exceptions for diplomats and Indians that everyone agrees exist.
"I have diplomatic immunity! Also I live on a reservation with their own police force. So no."
It's pretty clear that's what the amendment means. The only ambiguous situation I've found is if you're born just inside American waters on your way between foreign countries, but that's a really narrow case.