Now you make me curious as to whether you have ever considered what I have recently come to believe is the most compelling argument in favor of Vattel based "natural born citizen".
It is the origin of the word "Citizen." I have looked in four English law dictionaries written prior to 1776, and the word is not defined in any of them.
The word, as used in the context of members of a nation-state, is unknown to English law until much later than 1776. The English meaning of the word at this time was member of a City. "City-zens" as in denizens of a City.
Have you ever gone down this road before?
“Have you ever gone down this road before?”
Yes, the usage of the words, citizen and citizenship, in the international context are not equivalents between England and Continental Europe in the 18th Century and earlier. The relationships require an in depth knowledge of the usage from the days of the Ancient Greek polis through the Roman Republic, Middle Ages, and into the Enlightenment.