There is a mountain of evidence that a "modernist" fifth column is striving to transform doctrine into a dead letter through corrupt praxis.
"...Though they express astonishment themselves, no one can justly be surprised that We number such men among the enemies of the Church, if, leaving out of consideration the internal disposition of soul, of which God alone is the judge, he is acquainted with their tenets, their manner of speech, their conduct. Nor indeed will he err in accounting them the most pernicious of all the adversaries of the Church. For as We have said, they put their designs for her ruin into operation not from without but from within; hence, the danger is present almost in the very veins and heart of the Church, whose injury is the more certain, the more intimate is their knowledge of her. Moreover they lay the axe not to the branches and shoots, but to the very root, that is, to the faith and its deepest fires. And having struck at this root of immortality, they proceed to disseminate poison through the whole tree, so that there is no part of Catholic truth from which they hold their hand, none that they do not strive to corrupt..."
These same progressivists also strove to change the complexity of the USCCB by recommending their "own". Still Proud Of Bishops He Gave U.S.. The intent clearly was to see them elevated to cardinals while still young in anticipation that one of them would be elevated to pope and convene Vatican Council III at which point they could implement the changes they desired. What they failed to factor in was the workings of the Holy Spirit. John Paul II's papacy extended well beyond their anticipations. Of the bishops appointed, only a small number made it into the College of Cardinals and had no impact on the voting process.
In the 2000 year history of the Church, despite a few bad popes, not one has ever erred in teachings on faith or morals. Not one! No other institution on the face of the earth can match that record, testimony to the working of the Holy Spirit. Our Lord promised that "not even the gates of hell would prevail" against His Church. We are still here, despite all the attempts. Have faith!