I haven't read Sean's book, so take this with a grain of salt, but I feel like the issue here is that "Old SSPX" is based on Lefebvre 1988, while "New SSPX" is based on Lefebvre 1982 (or so.)
I feel like its hard to really blame one side or the other when both are basically arguing over "which side of their founder." And to be clear I say that with the highest respect for Lefebvre. These are rough times. But he wasn't fully consistent, and I know you know that.
I think the "Neo SSPX" would still say there's errors in V2, and that the NO is objectively wrong, even if they don't extend that "guilt by association" to the Motu masses, and I think that's a meaningful distinction from FSSP. I've also seen people who have met Bishop Fellay apparently say he expressed a willingness to consecrate new bishops without Roman approval, again, if he had to, something you wouldn't see from FSSP.
So I'm not convinced these organizations really are just identical just because they might work together in some ways.
1. You admit you are completely ignorant and don't know what you're talking about. You realize, of course, that even if you're penniless you can essentially read the whole book online:
https://www.cathinfo.com/c.htm2. Your argument about "which side of their founder" is bizarre. Time flows in one direction. Generally speaking, one's naive, youthful, rash, foolish, or other mistakes happen EARLIER in one's life, and as one matures these flaws are rejected in favor of wiser and better decisions. How many people do you know whose "old self" is better than their "latest self"? I'm not talking about health or being in-shape (including being physically quick to learn things: one's brain declines with age too). I'm talking about wisdom and things spiritual. And with these things, you improve with age, generally speaking.
3. Believing that Bishop Fellay is willing to consecrate new bishops doesn't just require a leap of faith or trust in the man, it would require going AGAINST reason and the evidence of your own eyes. My proof? The SSPX (under +Fellay) coming out publicly against recent episcopal consecrations in the Resistance, including the consecrations of Bp. Faure, Bp. Thomas Aquinas, and Bp. Zendejas. How could the SSPX *ever* consecrate a bishop in the future without papal mandate, since they basically condemned both +Williamson and +Lefebvre for what they did? There were no fundamental differences, by the way, between the 1988 Consecrations and the recent consecrations by +Williamson. The only differences were trivial and accidental. All the fundamentals were IDENTICAL: done publicly, for the good of the Church, from a state of necessity*, without Papal mandate, with the consecrator not intending to confer any jurisdiction, etc.
4. If Bp. Fellay told anyone he was willing to consecrate more bishops in the future under *any* circuмstance, he was not being honest. He was probably trying to keep various parishioners content/happy, to keep the money flowing in.
*Fun fact: the consecrator being
personally convinced of this "state of necessity" is sufficient to avoid any automatic excommunication. This was clearly the case for both +Lefebvre and +Williamson.
Another fun fact: In 1988, no one was actually excommunicated. If you read the text of John Paul II's "Ecclesia Dei Afflicta", you will note that he only says, in so many words, "Behold, they have incurred the automatic excommunication" which was obviously false. Besides, the Pope can't
legitimately excommunicate someone without a fair trial. Cutting someone off from the church isn't like grounding your teenage daughter for getting a tattoo. It's not something that can be done in anger or on a whim. Even Luther got a trial. In short, there has to be a mortal sin involved. You can't cast out a friend of God from the Catholic Church. That's not how it works.
What Catholic dogma(s) did +Lefebvre deny? What heresy did he make up and teach others? That is what would be discussed in a trial. But he never got a trial. How convenient. It's because it would come out that he was just being a faithful Catholic, and that Vatican II was the true schism and heresy. Every saint, book, Doctor of the Church, and dogma would be on +Lefebvre's side, and the only thing(s) condemning him would be the New Religion of Conciliarism which was hatched by the devil at Vatican II.
As for +Lefebvre's "disobedience" or "problems" with the Pope, he had no such "problems" before the Popes went off the rails. Also, that's like αrrєѕтing a man for NOTHING, and if he puts up a fight for being αrrєѕтed innocent, the police charge him with "resisting αrrєѕт". Isn't that kind of circular? So an innocent man refuses to go quietly since the police fail to tell him what he's being αrrєѕтed for -- so he's αrrєѕтed for "resisting αrrєѕт".