Senator Pinckney's opinions do not establish Constitutionality any more than Senator Feinstein's opinions do. Plenty of elected officials wish that the Constitution says something else besides what it clearly says. All this wishing doesn't make it true.
Now post some case law.
Thomas Jefferson wrote Virginia’s birthright law of 1777 requiring the father to be a citizen.
“We can say with confidence that a natural-born citizen of the United States means those persons born whose father the United States already has an established jurisdiction over, i.e., born to father’s who are themselves citizens of the United States. “
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The “natural born” Clause’s origins have been traced to a July 25, 1787 letter from John Jay to the presiding officer of the Constitutional Convention, George Washington. Jay wrote, “Permit me to hint, whether it would be wise and seasonable to provide a strong check to the admission of Foreigners into the administration of our national Government; and to declare expressly that the Commander in Chief of the American army shall not be given to nor devolve on, any but a natural born Citizen.”
To be considered Natural-Born, both parents must be citizens, otherwise, we’ll have anchor babies running for POTUS in the future.