I will not concede your point. The Catholic Church does think that God’s word isn’t sufficient for salvation and they DO put just as much creedence and faith in the writigs of mere sinful man.
The Catholic Church is just a guilty as the first century Jews in trying to write their own laws. The Jewish leaders felt themselves to be above the law of God and the Catholic Church does the exact same thing. Hence they try to add to and take away from God’s written Word.
That is a gross mischaracterization that had its origin in the propaganda of the Reformation. The Catholic Church affirms that Scripture contains all that is necessary for Salvation. Going ever further, the Church teaches that Salvation van be found in the Gospels or even a few of the words of Jesus.
The original Protestant premise that Scripture Alone is all that is necessary for Salvation has morphed into a doctrine that claims that Scripture Alone shall be the exclusive source of Salvation. The Traditions of the Church, derived from the oral teachings of Jesus, the Apostles, and the Early Church Fathers were considered counter-scriptural.
"There are also many other things that Jesus did, but if these were to be described individually, I do not think the whole world would contain the books that would be written." - John 21:25