I say that it is up to the Magisterium. That is whom the Lord left in charge. There have been many individual bishops over the years who have rebelled and formed their own theological groups.
Now, I am not accusing SSPX of pulling an Arius or Montanus or Nestorius, but I would view them as wandering in that direction. Probably a more accurate parallel would be the bishops who rebelled after Nicea in 325. Some of them were very well meaning. However, they were wrong.
“I say that it is up to the Magisterium.”
That’s a very interesting statement. You appear to be referring to the current magisterium as opposed to the eternal Magisterium, as if the former trumps the latter whenever there is obvious conflict between the two.
And please don’t try to tell me there isn’t conflict between the two.
“Extra Ecclesiam nulla sallus” will be my first rebuttal to your defense, if any, of the current magisterium and its teachings.
"Probably a more accurate parallel would be the bishops who rebelled after Nicea in 325. Some of them were very well meaning. However, they were wrong. "
That's a helpful comparison, thanks.