Again, the only relevant question here is NOT strictly speaking, NBC. Indians born in the US under tribal jurisdiction were not citizens until 1924, EVEN after passage of the 14th amendment. The question is what the framers intended NBC to mean with regard to eligibility for assuming the office of POTUS. NBC has no other constitutional applicability. Most importantly, the SCOTUS has never directly ruled on this issue.
The framers themselves were not NBC’s. They had to install a grandfather clause in Article II to make themselves eligible to the presidency, even though they founded the nation and won it’s revolution.
Think of all trees being plants, but not all plants are trees.
You certainly must know that... in the specifics, the Founders were interested in NOT having a President who had direct loyalties and fealties to Britain— for just that case, and because the inordinate number of Tories still in country, living “sub rosa”. That is, those who did not flee to the Bahamas (like Howe did— have seen the ruin of the loser’s house on Cat Island— sheep live there now), or were not properly strung up by Americans.
The actions of the French Ambassador Edmond-Charles Genêt come to mind— and his illegal stirring up of the young US countryman to act against the monarchy that supported our Revolution (to their financial and personal detriment, and which also nearly had Lafayette guillotined).
NBC applies most importantly to the Office of the Chief Executive with much power. SCOTUS needs to rule- and especially when we have the court properly Constitutionally balanced and not staffed with the “pesky living document” frauds and RBG.