The Supreme Court defined natural born as “all children born in the country to parents who were its citizens.” No ruling has ever overturned this definition, which was followed as legal precedent.
No they haven't. At best, there have been comments made in some decisions which seem to support your claims. Those comments are defined as obiter dictum, and under the doctrine of stare decisis, comments made in dicta are not binding. So no, there is no binding legal precedent that support your definition.