Not as much as R&R ignorance frustrates me.
Then it must be the truth that frustrates you.
What Church are you even talking about here? Because you're clearly talking about two different bodies. If the "pope" and his prelates are legitimate, then their teaching is legitimate and part of the ordinary teaching of the Church.
There is the Universal or Catholic Church, and there is it's ape, the conciliar church. The pope and his prelates are legitimate, but their teachings, being NO, are not.
But, you're making up your own definition of what does and does not constitute ordinary magisterium. To say that the post-conciliar teachings are illegitimate additions to the deposit of faith is to say that there is some other body here aside from the Church implementing these things, as these same post-conciliar teachings are coming right from the men you claim are undoubtedly popes.
I never said they are illegitimate additions to the Deposit of Faith, in fact I said the exact opposite, I said there can be no additions:
"Impossible. The Church's Magisterium is derived from the Deposit of Faith,
therefore nothing new can ever be added, taken away, or in any way "become part of" it, which means NO teachings are not part of and will never be part of the Church's Magisterium."
And I repeated that when I said:
It is by their errors that it is "ipso facto that we know that those things they are teaching,
are not of the Church's Magisterium."
You misunderstand what the Church's Magisterium even is. You see the pope/hierarchy as the magisterium itself, whereas the Church's Magisterium are teachings from the Deposit of Faith taught to the Universal Church. The popes or councils or whomever is not the magisterium. To continue to think this way will keep you disbelieving the dogma of the indefectibility of the Church.
Pope Pius XI, Divini Illius Magistri (#18), Dec. 31, 1929: “… God Himself made the Church a sharer in the divine magisterium and by His divine benefit unable to be mistaken.” ... “To this magisterium Christ the Lord imparted immunity from error...”
Pope Leo XIII, Caritatis Studium (#6) July 25, 1898: The Magisterium “could by no means commit itself to erroneous teaching.
There are many other similar teachings on the Church's Magisterium. A sede poster from the past who I really liked was banned used to post them, sadly all his posts were deleted as well, but they all said the same thing as above - the Magisterium is always infallible, referring to teachings of the Church, not the pope/hierarchy.
Unless you understand it this way, you are forced to accept that the Church has indeed defected, or as Lad likes to put it, "has gone off the rails", which of course is not only impossible, it is contrary to the above papal quotes as well as the dogma of the Church's indefectibility.