According to the Inquisition.
Someone has to win this tug of war over the definition of what a Roman Catholic is, and if push came to shove the smart money would be on Rome. They're an authoritarian, highly hierarchical church, and have been so ever since mixing up with the Roman emperor for the first time. Surprise. not
The catholic church has also spewed out dissident sects to become other religions a fair number of times. I'm not going to be overly surpised if the next half-century sees this happening again.
Did the Inquisition team (for lack of better term) initiate this dogma? And was it absent before that team started up?
I just see a conundrum here. Folks are trying to say that they're "Roman Catholics" but not of the "authority of Rome." No can do, unless they can oust the Vatican from the authority of Rome. Hey maybe Billy Graham would want the job? :-) The only practical choice is to step outside that mold. That's what the Greek Orthodox did. That's what the Protestants did. Or perhaps, what the sedevacantists (i.e. Roman Catholics who aver that no qualified person currently occupies the Papal seat) do.