So? The highest court in the land acknowledged the 14th Amendment designates babies born in the U.S. of illegal immigrants are U.S. citizens.
You have the correct interpretation - born here = citizen
Can the Child of an Undocumented Immigrant Become a U.S. Citizen?
This is the a priori assumption that would be argued in the courts. We’ve already seen a case of legal immigrants who had a kid in the US, went back to China, and had that birthright citizenship argued all the way to the supreme Supreme Court. Not at all outside of realm to have birthright citizenship of illegal immigrants argued in front of the Supreme Court, that’s actually an easier case to make. This has been the point of the debate for some time now. We all are aware of the a priori assumption, stop pointing to it, it is a no shit statement.
The point has been litigated. If you're born here, you are a citizen:
The myth of the ‘anchor baby’ deportation defense
3 Things You Should Know About Birthright Citizenship
Do you read your own articles? The first is about the practicality of the anchor baby as a strategy to stay in the US. The second just proves my point of the murkiness in jurisdiction, and gives its own take on the Wong Kim ark case, and fails to mention “oh, btw, Arks parents were in the country LEGALLY, which was the reason why it was determined that they fell under jurisdiction.
The problem you're having is in establishing what is relevant history and relevant rulings contrasted with dicta. Dicta is not even persuasive authority.
Here are the relevant quotes from the first article:
"But the anchor baby, while potent politically, is a largely mythical idea."
For illegal immigrant parents, being the parent of a U.S. citizen child almost never forms the core of a successful defense in an immigration court. In short,
if the undocumented parent of a U.S.-born child is caught in the United States, he or she legally faces the very same risk of deportation as any other immigrant."
Here is the relevant quote from the second link:
"To be clear, it means that current jurisprudence indicates the U.S.-born children of undocumented immigrants are given citizenship by the 14th Amendment."
I'm not sure what you think was proven, but the bottom line is the bottom line on this subject. If someone were born here, they are a citizen. If someone is not under the jurisdiction of the United States, they are not subject to being deported. Diplomats and foreign forces here at the behest of the government would constitute people here, but not under the jurisdiction of the law.