If the  NO in its exercise of its magisterium said that Jesus was actually a cross dressing female, and that you ought to go out and desecrate crucifixes, would you accept it as true? That is the position you are taking: that whatever the bishops say is a valid exercise of the magisterium. If you did not accept that Jesus was a transvestite, you would be dispensing with the magisterium, right? I don't think you understand that the teaching authority of the church cannot contradict prior teachings. Very poor catechesis, very very bad. Vatican 2 contradicted prior teachings of the church, it just made stuff up to suite the fads of the time. Do you know the distinction between a teaching of the magisterium and a discipline, for example? I doubt it.