Besides I don't count heretics as representatives of the Church. ++Thuc, ++Lefebvre, +de Castro Mayer as well as others expressed doubt about P6.
But not in 1965. In trying to prove Vatican II is infallible, John Daly docuмents these facts for us,
"almost all the world’s bishops were gathered together and at the moment of promulgation of the decrees by the man recognised as pope, not a dissenting voice was heard ... This proportion already surpasses the pro-infallibility consensus at Vatican I, which has always been regarded as morally unanimous ... and if any bishop continued to reject [Vatican II's promulgation] ... after its promulgation and despite his signature to it, the world’s Catholics remained entirely unaware of this fact for at least the next ten years." So, how do you explain that "the man recognised as pope", in Daly's own words, did this in 1965? If even in Dec 1965, he was accepted by the Church, clearly he could not have lost his office by then, so the sedevacantist explanation of Vatican II must be incorrect.
Now, as for the other point you and Ladislaus bring up, I know some sedevacantists won't agree, but Vatican II isn't infallible, otherwise it would require the irrevocable assent of divine and Catholic Faith, but Pope Paul VI clearly said it required only the same religious obedience normally given to a Papal Encyclical, as we have discussed elsewhere.
https://en.wikipedia.org/wiki/Obsequium_religiosum Religious submission is mentioned in Vatican II itself and Donum Veritatis and other Magisterial docuмents clearly explain, in exceptional cases, witholding or reserving assent is allowed for theologians who are discussing the matter with the Holy See, as the Society is doing. "
withholding assent is allowed for a theologian "who might have serious difficulties, for reasons which appear to him wellfounded, in accepting a non-irreformable magisterial teaching." ... the theologian will not present his own opinions or divergent hypotheses as though they were non-arguable conclusions," and is to "refrain from giving untimely public expression to them," and "avoid turning to the mass media," but with a humble and teachable spirit it is his duty "to make known to the Magisterial authorities the problems raised by the teaching in itself, in the arguments proposed to justify it, or even in the manner in which it is presented," with "an intense and patient reflection on his part and a readiness, if need be, to revise his own opinions and examine the objections which his colleagues might offer him." prayerfully trusting "that if the truth really is at stake, it will ultimately prevail."https://en.wikipedia.org/wiki/Obsequium_religiosum Do you disagree with this? If so I can prove it from pre-Vatican II theological sources/
Amakusa, with regard to later Popes, as we've discussed before, it is sufficient to show they are accepted by all the Bishops, or Ordinaries, of the Church. The faithful are not infallible in teaching or declaring, but only in believing and adhering. The Bishops infallibly declare the Pope is really the Pope and the faithful adhere to and believe this infallibly. Thus, to show the acceptance of the Ordinaries of the Church is in itself a sufficient proof, as Fr. Hunter clearly says. Besides, your theory simply does away with the dogma of the Church's visibility, and takes refuge in an alleged hidden hierarchy whom nobody can see or know, Dom Gueranger explains, following Vatican I, why the Church by necessity must be visible, "
We, then, both priests and people, have a right to know whence our pastors have received their power. From whose hand have they received the keys? If their mission come from the apostolic see, let us honour and obey them, for they are sent to us by Jesus Christ, who has invested them, through Peter, with His own authority. If they claim our obedience without having been sent by the bishop of Rome, we must refuse to receive them ... for they have not been sent, they are not pastors. Thus it is that the divine Founder of the Church, who willed that she should be a city seated on a mountain/ gave her visibility; it was an essential requisite ; for since all were called to enter her pale, all must be able to see her." Theologians also say it is a "sign and infallible effect of a valid election" (Wernz-Vidal), because universal acceptance is a sign, it must be externally discernible and so is closely tied to the doctrine of the Church's visibility, which the living-Paul VI-double-in-hiding thesis denies.