Joan, I think I see where we disagree. I do not believe in your church. My reading of history and study of human nature and what I have been given to believe by a higher authority than the human, whether divinized as you see it or not does not accept as valid your implied inerrancy of the Magisterium. 
   It is a matter of conscience and faith. Even the official church teaching allows freedom of conscience, which your view does not allow. It does impose itself as an absolute with which no-one may disagree without going against God. 
   Your view allows you to possess absolute truth. No-one can argue with you and win because the authority you refer to is divine and has revealed itself through what is, by implication, infallible. If you deny that this is so, then how does your belief in the absolute (don't care to know) authority of revealed truth to which the Church has exclusive rights, hold up? 
    As a matter of faith I reject this as true on grounds of conscience.