You may want to ask some other RCs if they actually believe THEY wrote the NT. Could you provide the Scriptural reference for Paul, Peter, Matthew, Mark, John, Luke, Jude joining the Roman Catholic Church? Any of them? Any single one of them? Just one...please. This is what the normal world calls a delusion, my FRiend.
Jesus established ONE Church. Your sect is a man-made one. It might date back to the 16th century at best. The Church on the other hand, can trace its roots back to Christ. No Protestant can claim that.
You have it backwards. The gospels show that our Lord gave authority to the apostles to lead the Church. Acts 1 shows that this authority is not personal to the original twelve but continues in their successors. St. Paul clearly describes a church lead by bishops, priests and deacons. History shows the continuation of that early church to the Catholic Church of today. So the proper question is when did Universal, i.e. Catholic, Church lead by its bishops as successors of the apostles cease to be the church founded by our Lord Jesus Christ?