Salza definitely taking one off the deep end.
Yes. His downward spiral started when, pressed in an interview, in order to remain true to his (false) principles, he had to assert that Joe Biden is more of a Catholic than Archbishop Lefebvre does. I liken this to something akin to a sin against the Holy Ghost, when the Pharisees were claiming Our Lord was of the devil.
See, for people who possess intellectual honesty, if you take your principles to their logical conclusion and they lead to absurdity,
ad absurdum, you take a step back and re-evaluate where you went wrong. Instead, Salza doubles down to the point of clinging to his absurdities, such as that Trad Catholics are "the Great Apostasy" and Joe Biden is a better Catholic than +Lefebvre. You take a wrong turn in the woods and go down a bad path, get off the trail, and end up by a swamp. You realize you took a wrong turn somewhere. Instead, Salza, refusing to admit his mistake, has waded neck deep into the swamp, insisting that this is the right path.
It happened to me in the past, where my erroneous principles (the heresy "cooties" thinking) led to the absurd conclusion that I was the only Catholic left in the world, and perhaps even I wasn't. At that point I was like, "Welp, I got something wrong here. Not sure what, but I'll try to pray and think about it, but it's ridiculous that I'm the only Catholic left in the world." Not so for Salza in terms of his erroneous principles.