In your opinion, who else besides Flat-earth believing, BOD loving, R&R's have the Truth?
I do not limit "Truth" to any of the groups you list above. It's the nutty Pharisedes who limit "Truth" to only a so-called privileged few.
Pharisedes are the Jews of the Trad movement, as I've said before. They believe they are God's chosen, and that they are superior to all others, and they infiltrate in order to take over. And they have contempt for anyone who challenges them.
Sedevacantism is an illness.