Seems pretty straight-forward to me: "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."
This is another stupidly worded Amendment that is DELIBERATELY being misinterpreted.
“The clause’s author, Senator Jacob M. Howard of Michigan, phrased it a little differently.
In particular, the two exceptions to citizenship by birth for everyone born in the United States mentioned in the Act, namely, that they had to be “not subject to any foreign power” and not “Indians not taxed”, were combined into a single qualification, that they be “subject to the jurisdiction” of the United States, and while Howard and others, such as Senate Judiciary Committee Chairman Lyman Trumbull of Illinois, the author of the Civil Rights Act, believed that the formulations were equivalent, others, such as Senator James R. Doolittle from Wisconsin, disagreed, and pushed for an alternative wording.[11]-WIKI
Aliens in the Unites States illegally are still subjects of a foreign power.
England makes it clear that children of NON-CITIZENS ARE NOT
BRITISH CITIZENS
If you were born in the UK on or after 1 January 1983
You don’t automatically get British citizenship if you were born in the UK.
If you were born on or after 1 January 1983, you’ll be a British citizen if your mother or father was either:
a British citizen when you were born
‘settled’ in the UK when you were born
In most cases you’ll be a British citizen if your mother or father was born in the UK or naturalised there at the time of your birth.
If you were born before July 2006, your father’s British nationality will normally only pass to you if he was married to your mother at the time of your birth.
If your circumstances are more complicated, you can get more information about British citizenship.
https://www.gov.uk/types-of-british-nationality/british-citizenship
“and subject to the jurisdiction thereof” is the kicker. Children of citizens of other nations are subject to the jurisdiction of those other nations, not our own. This is why embassies protest maltreatment of their citizens abroad, and why a person can be held accountable for breaking a US law while in another country, because it is the nation of citizenship which has the jurisdiction over the individual.