See my previous post. UA seems to be tossed out there all the time as if it were some given, dogmatically established. I disagree. It's a theological speculation that's fraught with difficulties, contradicted by the cuм ex, undermined by some historical precedents, etc.
And another aspect is ... universal by WHOM? 90%+ of Novus Ordites, by their own polls, have lost the faith, denying one dogma or another. So, if the Arians, which some have suggested took about 90% of the Catholic Church down in its day, had managed to elect an Arian as pope, would that 90% acceptance count for anything?
So of those Catholics who have still the faith, a very significant percentage, even if they aren't SVs, entertain serious positive doubt about the legitimacy of the V2 papal claimants. It is not necessary to be certain that they're illegitimate. Rather, if you're NOT certain, with the certainty of faith, that they're legitimate, if you can't basically say that you're as sure that Bergoglio is pope as that there are Three Persons in One God, then you don't have the requisite certainty of faith to make their legitimacy dogmatic fact, which is what it must be for any dogmas these popes were to define to be certain with the certainty of faith ... and that's where this principle of Papa Dubius Papa Nullus ("a doubtful pope is no pope") come into play.
I’m not saying I’m as certain of the post Vatican II Popes as I am of the Trinity. I’m just trying to understand the logic by which we are permitted to doubt them, not saying that it’s not permitted to doubt them.
I guess my issue here is even given your premises, that 90% or so of Catholics don’t count due To rejection of some dogma or another, 10 percent of the NO is STILL the majority of Catholics. Even if somehow we say SSPX, etc doubts them, it still seems like the majority of Catholics, including every Catholic cardinal (even if that’s not most conciliar cardinals) And every bishop with ordinary jurisdiction thinks they are popes. I guess the only thing you could say hair is that universal acceptance Doesn’t suffice as a justification, but even then that raises a question for me. Even given your premises hasnt God allowed the vast majority of the church to err both on the identity of the pope and the rule of faith?