[Lurking Libertarian]

Illegal Mexican citizens tripping over the border in time to pop a kid are not subject to our jurisdiction. No jurisdiction, no citizen.

Foreign diplomats are not under our jurisdiction-- they have diplomatic immunity. Illegal aliens are under our jurisdiction, otherwise we could not prosecute them for illegal entry or any other crimes they commit. No jurisdiction, no criminal prosecution.

[Regulator]

Wrong, paleface. You're confusing territorial jurisdiction (a policing concept) with political jurisdiction (a nationality concept), as has been explained here a thousand times.

The sentence is not written to be redundant.

[PghBaldy]

That’s not what it means. It means citizen or subject, not some nomad traveling through. It has been changed by libs recently to mean something else.