Sedeplenist: My understanding is a Pope that is sorrowful for his actions, that is for not acting or performing as a catholic. He says he is sorrowful and continues his reign. Opinion: If there was true sorrow, that (so-called pope) would demand for new election to take place. Only right. These men are not ordained, not catholic, heretics they are. And besides that, all of those men who elect, where are their souls?
Sedevacantist: Pope must be Catholic before nominated. Manifest actions/now them by their fruits. If a (so-called) cardinal(this one was not ordained (before or by 1968) So, this one is not with proper ordination to start off with and it should end right there.
God will have His day. Scripture is clear. Mass will end. Cht. 12 of Daniel.