I know you say I'm quite wrong, but can you point to a Supreme Court ruling - or even a definition in statute - that runs counter to jus soli? That upholds Vattel's position? Barring that, it may be your belief that it should be changed but the legal and - because of the Supreme Court - constitutional position is that of jus soli: natural born by virtue of being born on US soil.
Lest I remind you that Supreme Court opinions do NOT change the law and they are not set in concrete. The laws on the books well after WKA are a testament to that. It wasn't until after 1936 that dual citizenship was even a possibility, but then again, it wasn't adopted as law either. Children still followed the condition of the father unless born out of wedlock. Thus, it wasn't jus soli that was definitive in defining citizenship at birth, it was jus sanguinis and it is easily available for consumption at the US Library of Congress.
I understand this concept is hard for those of you to understand, but just because some words were changed in Title 8, that is available to read online, without actual legislation being passed does not make it law.
Ramsay was a member of the constitutional convention as well as a signer of the constitution and his dissertation is more credible to the intent of the framers than some rogue justice(appointed by the only other usurper) who ignored his own ruling, in the landmark case of Elk v Wilkins that held the civil rights act & the 14th Amendment to be constitutional, for some progressive political agenda.
And let's not forget Grey's later decisions that led to great monetary gain. Decisions that have since been overturned.
Barring that, it may be your belief that it should be changed but the legal and - because of the Supreme Court - constitutional position is that of jus soli: natural born by virtue of being born on US soil. Excuse me - SCOTUS DOES NOT take positions on questions that HAVE NOT come before the Court. They HAVE NEVER declared jus soli the requirement to be natural-born.
Now, in Ark, had Ark been running for President and was denied being on the ballot - SCOTUS WOULD have had to rule whether he was natural-born ...