You remind me of a Feenyite, pointing to John 3:5, and saying, "What part of that don't you understand?!?"
Completely different topics Seraphim. False analogy is another favorite of those indoctrinated by the SSPX.
You have simply evaded the issue over and over again: why did Archbishop Lefebvre say "I do not say either one cannot say the Pope is not the Pope" if the position is schismatic? If the position is schismatic he would have said: you cannot say the pope is not the Pope, that is schism.
He would not have said that the sedvacantist position is possible, he would not have said someday they might have to accept the sedevacantist position. He would not have accepted sedevacantist seminarians. He would have simply said: such a position is schismatic and unacceptable.
But ultimately, it's patently ridiculous to say the Pope has lost the Faith, to say Rome is in apostasy, to say they have quit the Church and to simultaneously say that no one can be a sede without being schismatic. It's patently absurd, and of course, it was not his position.
You need to look in the mirror.
You need to get out of the SSPX funhouse. It distorts everything because it tries to hold mutually contradictory positions.