There was only one Church in existence at the time of canonisation of the first Bible and that was the CC.
You can call it what you like, but it was not the RCC we have today. It was the Body of believers the Lord led, and only infallible as far as truth is separated from error.
The Bible was proclaimed as the inspired 'word of God' by the authority of the Catholic Church. That is an historical fact.
Name an 'ecclesial community' that has a documented and unbroken 2000 year history linking it back to Christ himself.
Try the Church of Jerusalem, older than the Church of Rome, never submitted to any Pope, and left the RCC over that and many other issues. (Ouch, you really didn't want to go there, did you?) I have no need to denigrate
your Faith, but these are acceptable reasons for me not to submit to the Church of Rome, since you asked. I can hope you are called by G-d to your local Church, and are Faithful in that.
A couple issues I need to raise, since I understand Spiritual warfare rather well:
flesh and blood is not your enemy. Nothing wrong with cheering for the home team I suppose, but why intentionally pit yourself against fellow believers? Throwing down the challenge of "2000 year unbroken history," certainly you are aware that lineages of Bishops do not corroborate one another back to Peter? And that qualifications for Bishop included "teach the same?"
It would seem that sound Doctrine is what matters. Clearly it is the Doctrine of the Apostles that is relevant here, as nothing else can truly be established. And what is sound doctrine? I know RC's aren't much for simplicity, but Peter was much simpler than Paul, and even Paul boiled things down to the death, burial and resurrection of Jesus Christ.
Those are your battle lines, Sister!