Our forefathers certainly didn’t mean born and raised muslim.
There seem to be at least two schools of thought on this subject. I tend to buy into NBC meaning “born of two US citizens, regardless of location.” But I have seen people argue other points of view. I don’t know all the court decisions, but we have now got to the point it means “anybody born here.” Which I find ridiculous, call me old-fashioned.
The Senators and Representatives before mentioned, and the Members of the several State Legislatures, and all executive and judicial Officers, both of the United States and of the several States, shall be bound by Oath or Affirmation, to support this Constitution; but no religious Test shall ever be required as a Qualification to any Office or public Trust under the United States.
Born and raised Muslim has nothing to do with whether someone is Constitutionally eligible to be President.