I'm not a sede or SSPX, but after looking into stuff more and even listening to mainstream people like Dr. Taylor Marshall, I've come to the conclusion that sedes or SSPX could be right, but only a pope can declare that. It does seem very likely that V2 was created to mislead people, with the intent object of that, and that many high ranking bishops and cardinals either have no faith, are satanists or masons. It seems very likely that the church has been infiltrated.
Let's say the the seat is actually vacant. I think the safest thing to do would just be to try and go for Latin mass when you can but that's about it. I don't think we will be blamed for not being able to actually tell that the seat is vacant. Actually the biggest issue for me is the canonization of JPII and Paul VI, especially JPII is on record, still never retracted his prayer for "St. John the Baptist to *protect* Islam" and a bunch of other nonsense. He lied and said Humani Generis stated that there is no conflict between evolution and the faith, but rather all it says is that it is not forbidden for " research and discussions" to take place around the theory of evolution, and it explicitly states that the theory of evolution has not been proven. http://w2.vatican.va/content/pius-xii/en/encyclicals/documents/hf_p-xii_enc_12081950_humani-generis.html
Read that and tell me where it ever says that Pope Pius XII stated there is no conflict between evolution and the faith. Either JPII lied or is a real idiot who can't read a simple document. When you look at his life in general, it could very well be said that he was hostile to the faith, openly blaspheming, and creating so much scandal. Who knows if he even had a deathbed conversion? One thing is for sure, he should never have been publicly venerated as a Saint - despite if he miraculously had some sort of deathbed conversion. He seems very masonic in almost everything he was doing. He also started the nonsense regarding the death penalty. V2 is a pile of extremely (probably) intentionally misleading documents that has only served to destroy the faith at a record pace.
So in the end I don't really know. I don't think I will be blamed for it, because only a Pope can judge a Pope, and I guess I don't know enough to really say that the Popes are formal heretics. I don't think we can actually make a strong case to say they are formal heretics though. I do think that we are in end times and the world won't last for like more than 100 years.