Senator Howard one of the author's of the 14th Amendment said,
"Every person born within the limits of the United States, and subject to their jurisdiction, is by virtue of natural law and national law a citizen of the United States. 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,...."
This is the meaning and intent behind the 14h Amendment.
If children of accredited (or registered) foreign agents, IE ministers and ambassadors of other governments would not be citizens of these United States under the 14th Amendment, why would the children born here of uncredited or unregistered agents of foreign agents [spies] be allowed US citizenship? The answer is that they would not.
agents of foreign agents = agents of foreign governments....