“Many people read things and do not understand them. “
And what are we failing to understand here...
“none, O Mother of God, attains salvation except through thee”
- Pope Leo XIII
It's gotten very, very, clear to me how wise those who put the CCC together were and why it goes into such great detail on everything leading up to each point. It has to in order to counteract the tens of thousands of errant interpretations people spin out each and every day to suit themselves.
Twenty seconds in any search engine shows what Church dogma is, including the FACT that the Church teaches the sacrifice of Christ is complete, sufficient, and that no one can add to it. We, as Mary did, can cooperate with Christ, but we cannot add to anything He does nor can we in any way obtain salvation other than through Christ alone.
CCC 454
The title "Son of God" signifies the unique and eternal relationship of Jesus Christ to God his Father: he is the only Son of the father (Jn 1:14,18; 3:16, 18); he is God himself (Jn 1:1) To be a Christian, one must believe that Jesus Christ is the Son of God.
CCC 455
The Title "Lord" indicates divine sovereignty. To confess or invoke Jesus as Lord is to believe in his divinity. "No one can say 'Jesus is Lord' except by the Holy Spirit".(I Cor 12:3)
CCC 618
The cross is the unique sacrifice of Christ, the "one mediator between God and men."(I Tim 2:5) ...
Obviously, those who are deliberately trying to keep others from recognizing His One True Church will apply their usual technique of taking things out of context or pretending that anything not explained in a single sentence is an error.
Anyone who is honestly interested can read the CCC with their Bible handy to keep up with the thousands of Scripture references it makes and see the truth. That truth is that the Catholic teaches the same three things that the Protestant evangelicals claim make for a Christian Church, Salvation by Grace alone, through Faith alone, in Christ alone. The only difference is that the Catholic Church believes the WHOLE Scripture and recognizes that Faith without works is dead, dead, dead, and dead. What meager bits of effort Protestants like to scream and wave their "works salvation" banner over pale by comparison to the work of actually taking the first step and accepting that Christ is the Lord. If taking that step is not work, than nothing the Church teaches is a work either.