To reiterate, this is one of the main eternal truths that God, himself restored to prominence that mere men tried to obscure:
"For we maintain that a man is justified by faith apart from works of the Law" (Romans 3:28, NASB).
The atonement of Jesus Christ is either sufficient (alone) or it is insufficient (works must be added).
If you choose to believe those who say Christ's sacrifice ALONE is not sufficient to save sinners, then you are believing a lie because such people are not teaching eternal, unchanging, Scriptural Truth.
I judge a tree by its fruits, regardless of your sloganeering and out of context proof texting. I am proud to be Roman Catholic. For one who knows the bible, history, and the condition of the world today, especially the onslaught of the culture of Death, there is no other option (with the possible exception of Orthodoxy.)
And according to scripture, faith without works is DEAD. Period.
What proof do you have, other than this new false interpretation of scripture, that the reformation was of God? It was not. It was the destruction of the unity of Christianity, and the unity of moral theology, and the seed of the culture of death, blooming to its full grotesque brilliance within the last century. You are blind.