“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.”
Note that last words “and of the State wherein they reside”.
Birth tourist babies have never resided in a state.
Some babies born die before taking up residence in mom’s home.
The last words imply that the sentence is only to apply to persons then residing in a US state as of ratification.
“subject to the jurisdiction”
Mark Levin says this means the laws to which a person is held. For instance a Ukrainian or Russian man might get a draft notice even if he’s in a foreign country.
Or Americans must file taxes even if they live elsewhere.