the courts are going to analyze the history and context of when the 14th amendment was written and the purpose of it. it was during the reconstruction period when they needed to figure out how to handle newly freed slaves who were not us citizens, and their children. in theory, these slaves were almost "stateless" people and their children would have been too. i suppose you could argue that they were still citizens of their home country, but in an era of extreme illiteracy those slaves couldn't even read or write, i doubt they're gonna be able to tell you "oh yeah i'm from ghana". so the entire situation was similar to a one-time amnesty deal with the intention of making them and their children whole in terms of citizenship status. it was not intended for people to come over and have anchor babies, birth tourism, and h1b temporary worker children skip the naturalization process. the "jurisdiction thereof" can basically be read as "not foreign national".
United States