I must say, this IS one of the dangers of Sedevacantism. Once you get in your head that only holy popes without major scandal can be true popes, it can lead to this insane conclusion.
I'd say this extreme Sedevacantist is very close to losing the Faith, but I fear that ship has already sailed.
This lunatic has even excommunicated St. Thomas Aquinas! He believes in a 1,000 year interregnum.
Remember I was saying yesterday that a 63 year interregnum is highly unlikely? But 100% of Sedevacantists don't have a problem with it -- eventually, many of them would rather embrace a 1,000 year interregnum -- or errors similar to this Ibranyi lunatic -- rather than consider that they might have been wrong. I would wager that some, perhaps many (but not all) would be more inclined to LENGTHEN the interregnum, after further personal study/interpretation, rather than shorten it or reverse their position. In other words, they are more likely to double-down and dig in, than ever admit they might be wrong.
I remember what a great Catholic theologian said about sedevacantists: that they hold the same basic error as the Conciliarists (an exaggerated papal infallibility and papal authority), but the road they take, their practical behavior drawn from their belief, is the opposite.