Too bad Bellarmine never used the term "declared". That's a little tidbit injected by John of St. Thomas. He simply said that the Pope in question had to be incorrible, i.e. unwilling to be corrected, but nowhere in the statement of the 5th opinion did Bellarmine state that he had to be declared such.
Bellarmine stated that only after he had been ipso facto deposed could the Church judge him. It's right there in his statement of the 5th opinion. He also cited as proof text the declaration of Pope St. Celestine, who declared that Nestorius had lost authority from the moment he began preaching heresy (several years before he was officially removed from his material occupancy of the office).
Your desperation is pathetic.
Your desperation is pathetic, as Plenus Venter has already refuted your Nestorius error back on p.3...using St. Robert Bellarmine:
"Nestorius was a bishop. St Robert's doctrine on deposition of bishops is very clear:
"...if the pastor is a bishop, they (the faithful) cannot depose him and put another in his place. For Our Lord and the Apostles only lay down that false prophets are not to be listened to by the people, and not that they depose them. And it is certain that the practice of the Church has always been that heretical bishops be deposed by bishop's councils, or by the Sovereign Pontiff" - De Membris Ecclesiae, Lib I De Clericis, Cap 7 (Opera Omnia, Paris: Vives, 1870, pp 428-429).
Add to that the common sense of Cajetan: "... a heretical Pope is not deprived (of the Papacy) by divine or human law... Other bishops if they become heretics are not deprived ipso facto by divine or human law; therefore, neither is the Pope. The conclusion is obvious, because the Pope is not in a worse situation than other bishops" - On the Comparison of the Authority of Pope and Council, Ch XIX
So your example does not help your cause, but rather confirms the fact that the judgement of the Church precedes the deposition. Yet if they are a danger to our faith, we separate from these pastors, as is clearly the teaching of St. Robert, and of Archbishop Lefebvre. Who knows if the Pope (or bishops), after being given admonitions, will not repent and so not be deposed at all.
You imagine that the judgement that these theologians say the Church can make (a Council or a future Pope), you are permitted to make now. But that is a complete and utter fantasy of yours supported by no theology or common sense whatsoever. It would be complete and utter anarchy and the end of the Church."
As for your quip that John of St. Thomas has falsified St. Bellarmine's position, I'd say the onus is upon you to prove it.