Isn the question of John Pauls papacy a mere matter of opinion?
Absolutely not. Our eternal salvation depends upon our submission to the Roman Pontiff. Therefore the question of John Paul’s papacy is of supreme importance, and we must resolve our consciences about it one way or the other. If we conclude that Vatican II contradicts the teaching of the Church, then we must reject John Paul II as a true pope. If we conclude that Vatican II is not a substantial alteration of the Catholic Faith, then we must accept him as a true pope, and follow what he commands us to do. A Catholic who is indifferent as to whether he is the pope or not is no Catholic at all. Rather he has the spirit of schism and of repudiation of authority. In the Great Western Schism, in which there were three claimants to the papal throne, St. Vincent Ferrer condemned those who were indifferent as to who was the true Pope.