The original meaning of the 14th Amendment didn't give somebody citizenship automatically upon being born here.
"The phrase "subject to the jurisdiction thereof" was intended to exclude American-born persons from automatic citizenship whose allegiance to the United States was not complete. With illegal aliens who are unlawfully in the United States, their native country has a claim of allegiance on the child. Thus, the completeness of their allegiance to the United States is impaired, which therefore precludes automatic citizenship.
The 14th Amendment to the United States Constitution - Fourteenth Amendment - anchor babies and birthright citizenship - interpretations and misinterpretations - US Constitution
(emphasis added)This will not, of course, include persons born in the United States who are foreigners, aliens, who belong to the families of ambassadors or foreign ministers accredited to the Government of the United States, but will include every other class of persons.
The writer of the article, having quoted that statement by the person who actually drafted the law, then goes on to make this bizzare statement:
The phrase "subject to the jurisdiction thereof" was intended to exclude American-born persons from automatic citizenship whose allegiance to the United States was not complete
That is just wilful misinterpretation. The language could not be clearer: if you are born in the US and subject to it's jurisdiction, i.e. do you not enjoy diplomatic immunity, then you are a citizen. It doesn't say anything about whether you may also be subject to the jurisdiction of other countries.