The intent of the NBC clause was to ensure that existing citizens were not going to shift their loyalty back to a monarch; or to allow royals to run for President.
The 14th amendment settled the discussion of who was a citizen—anyone born in the US.
This has been settled for a long time. I don’t recall hearing this garbage during Dukakis’ run in ‘88.
Was there any NBC issue regarding Dukakis?
Look at my tagline. It comes from John Bingham (Chief Proponent of the 14th amendment) during the debate on the 14th amendment.
*THAT* is what Congress believed it was voting for.