Must be they don't know that St. Robert Bellarmine, John of St. Thomas and many others made it a Church teaching and taught that a heretical Pope can be deposed.
No need for sarcasm. St. Robert Bellarmine, John of St. Thomas and others taught about a hypothetical situation when a Pope falls into heresy and there is orthodox hierarchy to depose him. None of them could have predicted what we experience today - a massive defection from faith of large part of the hierarchy and almost universal apostasy. Thus, anyone who might try to organize imperfect council will necessarily be in small minority and thus be labeled schismatics and marginalized. As to Burke and conservatives in the Novus Ordo Church, they all accept Vatican II and the New Mass, so they don't see (or admit) full gravity of the crisis and might think that Francis and Amoris Laetitia are just another difficult moment in Church history.
Yes, I completely agree - they taught their opinions about a hypothetical situation. This is known as theological speculation, not Church teaching. The cost of theological speculation is finding lead as well as finding gold. This is not my opinion, this is a fact of the nature of theological speculation.
The pope (Paul IV) said "the pope can be judged by none in this world." This IS Church teaching. After he said it, we know better than to attempt to judge the status of the pope - period. He minced no words, he added no exceptions in his statement, he left no provisos, he meant what he said as absolute as he said it.
As pope, in order to stop all speculation in the matter, he prefaced that teaching by first reminding us of the extent of his authority and who he is, saying; the pope is
"the representative upon earth of God and our God and Lord Jesus Christ, who holds the fullness of power over peoples and kingdoms..." - It is for this reason that he has no superior on earth - contemplate what this means, because it is for this reason he then says:
"...who may judge all and be judged by none in this world". He then teaches us the only thing anyone can actually do about a pope who is a heretic when he quite explicitly said that, that pope may
"be contradicted if he be found to have deviated from the Faith". Again, this is a magisterial teaching of the Catholic Church. After this, no one is left wondering what to do about a heretical pope, we have been given clear direction by our Holy Mother, all speculations and any confusion about what we are expected to do about a heretical pope is over forever.
All we can say as regards the Fathers who speculated the possibility that a heretical pope could be deposed, is that they were behind the times - Rome had already spoken, the case was closed - "Roma locuta; causa finita est".
And this is why your formula for deposing a pope, popular among sedevacantists and others who are behind the times, falls completely apart before it ever gets started, your first point should read:
1. Pope falls into formal heresy (by which he loses membership in the Church and thus is no longer a Pope) - the Chair of Peter is already vacant.Per pope Paul IV, your second and third points are therefore invalid, but per the actual magisterial teaching of the Church, the next point must read:
2. Pope to be contradicted by all of his subjects.THIS is what the Church actually teaches can be done about heretical popes. This is all She teaches about what can be done about heretical popes.
No speculation, no wondering, no confusing procedures to concoct, absolutely nothing complicated about it at all.