
I have theological opinions like everyone else, and I've never claimed that every act of the Magisterium is inerrant or infallible, and yet on the question of EENS I deny that BoD/BoB have every been definitively taught by the Magisterium.
What I'm saying is pretty straightforward, that the Holy Catholic Church cannot transform into a brand new religion, with a novel theological system rooted in subjectivism and Modernist thinking and cannot adopt for its public worship a Rite of Mass that is doubtfully valid and certainly harmful to souls. In short, if the Church were capable of transforming into an entity from which Catholics feel bound in conscience to separate because it had become so corrupt in its doctrine and public worship, that's tantamount to a defection of the Church, which is undoubtedly a heretical proposition.
As for BoD, I've repeatedly said that in its Thomistic/Bellarmine form it's not harmful to the faith, but only in its distorted form that undermines the necessity of Catholic faith for salvation.
So you're idiotically straw-manning my position.