If there were a Holy Pope that was accepted by all as legitimate, and then he taught that BoD must be believed by Catholics, then I would believe in it. Period. We can't play this game of "if I disagree with something he teaches, then I simply declare him a heretic non-pope and cling to my belief anyways". That kind of mentality is in fact an insight into the problem with Totalism. There's nothing, no principle, to establish a priori the legitimacy of a pope. Lots of Catholics before VI did not agree with papal infallibility (including some Irish catechisms that rejected the notion). But when the Church defined it, they (the Catholics) changed their mind and accepted it with the certainty of faith ... wheres the Old Catholics left the Church for schism and heresy.
While R&R has the problem of Magisterium-Sifting that it permits in principle, Totalism labors under the problem of Pope-Sifting.
Excellent comment.
Conservative Novus Ordo individuals entertain that Traditionalists have done the same with Vatican II and the post-Conciliar reforms.
This is where the matter is different than Vatican I. Vatican II defined nothing. The post-Conciliar reforms defined nothing (with the possible exceptions of the new canonizations and John Paul II’s Ordinatio sacerdotalis which was already part of the OUM).
Therefore there are no dogmatic facts, aside from the new canonizations, that are connected with accepting the Vatican II pontiffs.
There are, however, reversals and changes of prior definitively settled magisterial teachings which makes the acceptance of Vatican II and its teachings impossible as well as those who promulgated and ratified it. Nor is it a matter of bad willed interpretations on the part of liberals and heretics. The post-conciliar authorities have themselves interpreted the docuмents in heterodoxy. Not only that, they have also used Vatican II as the foundation to legitimize all of their heresies and impious attempts at changing the Roman Catholic religion.
So the two are not analogous and Traditionalists are not necessarily akin to the Old Catholics.
I do agree, also, that Totalism and R&R are problematic in their very principles. Pope sifting and magisterium sifting is unacceptable for a Catholic. The only challenge, in fairness, that I would pose to myself, as a Guerardian, would be the accusation of “de-formalizing” a Pope tryst I don’t agree with which roughly corresponds with the aforementioned. That, I currently, do not have an answer to.