What's funny about your statement above is that I disagree with most of what these folks (you mentioned) stand for also. You Catholics are not alone in your error!
You are, of course, correct. I apologize for not notifying you.
Thus, then, you lend even more credence to my statements that there are quite possibly millions of different interpretations of Holy Scripture, each claiming Divine inspiration as to the correctness of their interpretation, each differing either subtly or grossly, and therefore demonstrating that the claims are wrong.
The Bible itself says that one cannot have private interpretation of Scripture; Jesus says that His Church is the pillar of Truth; therefore it remains that the Church itself is the Authority that Jesus left on Earth. Any repudiation of the One Holy Catholic and Apostolic Church is a repudation of Him. Regardless of the frantic scrambling to somehow put His Church's legitimacy into question.
The only source that has told the world that the Bible is authentic and genuine is the Catholic Church. It compiled it, it preserved it and it has passed it out to the world. It is the keeper and the disseminator. The Sabbath Day was changed to Sunday under its authority. Because it has the authority. Christmas Day was decided upon because it had the authority to specify it. Ditto Easter. Ditto the Sacrament of Reconciliation (the forgiveness of sins). And so on.
Joe the Preacher setting up a storefront church in a strip mall doesn't. Creating his own church. Which is against Scripture.
Joe the citizen sitting in his own house reading the Bible on his own, creating his own theology based upon his current mood, doesn't.
We, the members of Church of Christ, invite all. It truly is the Universal Church of Jesus Christ, open to all who seek Him. Stop struggling against Him. Stop struggling against your own self. Accept His word and His way. Stop trying to create your own. In 2000 years, we've seen so many people think that they are up to creating their own way. All failing. So what makes so many people today think that they can succeed? Hubris can be the only answer.
Can you then explain Vatican II? Was the Catholic Church in scriptural error before Vatican II or is it now in error?
By the way, I prefer to use the original meaning of "church" which is eklesia, or congregation. In this sense, the argument you espouse of not being able to have an independent group can be seriously debated. From this point of view, Jesus' proclaimation "Where two or three are gathered in my name, I am in their midst" takes root and grows. A good congregation will not claim any private interpretation, but will invite scrutiny and study the Word in the open with the heart of a child, seeing what God has to say, and then applying it. A good congregation is humble and understands that since the Bible authors didn't know it all themselves, it is impossible for us to have all the answers now.
I Corinthians 13
8 Charity never fails. But if there are prophecies, they will be abolished; if tongues, they shall cease; if knowledge, it will be abolished. 9 For we know in part, and we prophesy in part. 10 But when the perfect thing comes, then that which is in part will be caused to cease. 11 When I was an infant, I spoke as an infant, I thought as an infant, I reasoned as an infant. But when I became a man, I did away with the things of an infant. 12 For now we see in a mirror dimly, but then face to face. Now I know in part, but then I shall fully know even as I also am fully known. 13 And now faith, hope, charity, these three remain; but the greatest of these is charity.
Oh, for heaven's sake. The Catholic church is NOT the true church of Christ. The true church is the Body of Christ. We're a mixture, we're not THE Catholic Church but we ARE the true Church.