If the baby is born here, it's a citizen. The Constitution says so. Here, I'll quote it for you, "All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside."
See? born or naturalized in the United States.
That's why you won't answer the question about what happens to undocumented immigrant who gets arrested and found guilty of a crime.
It means they're subject to the jurisdiction of the United States.
Now, there is a type of person that is not subject to the jurisdiction of the United States. And that's a diplomat.
That's why the language is so weirdly specific.
Diplomats have diplomatic immunity. You've probably seen it in movies. They can't be arrested for a crime. Why? Because they are not subject to the jurisdiction of the United States. And if they have a child while here in the US, that kid is NOT a citizen of the US.
Because they're not subject to the jurisdiction of the United States.