I know for a FACT that Jesus didn't lie and He wasn't mistaken, so the only logical conclusion is that His church, His body, His bride, is MUCH greater than solely the RCC. There are, no doubt, many genuine Christians there, but not all Catholics are true Christians - just as not all Baptists, Presbyterians, Episcopalians, etc. are - church membership doesn't always translate to a genuine saving faith. Jesus said that the "gates of hell will not prevail against" His church. He meant it and He will continue to prevent those gates from holding up a sincere seeker of the truth from knowing it.
Either Jesus was wrong/lied OR the Roman Catholic Church, in and of itself, is not the ONE, TRUE Church Jesus established.
Indeed, and the error is not only in supposing "church" refers to one particular church, but that holding the faith - which RCs will respond their church has done despite the declension in both upper echelons of their church and the laity - simply refers to formal professions of faith.
For as James 2 - which RCs love to quote as if it vindicates rather than overall condemns their church - teaches, what you believe is manifest in what you do, and thus what you effectually convey and foster.
And what Rome most effectually conveys is that as one can be a Christian no matter how liberal, as long as a Ted Kennedy dies in her arms she will get them into glory (which is far more conveyed in her funerals which she gives to such, versus that they are lost) as she is the One True Church, with a Mary whose prayers are like commands to God, etc.
This is consistent and the culmination of what she fosters from early youth up, that of confidence in the Roman church for salvation, as well as personal merit (with some mercy expected due to the atonement) which she so much emphasizes, and thus the constant advertizing and often blind defense of her even here, as if it were one's home football team.
Then in condescension to us they attempt to wrest support for their traditions of men from Scripture, all the while being contrary to objective examination of the Scriptures in order to ascertain the veracity of what Rome teaches.
Thus Scripture is reduced to being a servant to support Rome, not vice versa, as if being the steward of Scripture made them the assuredly correct interpreters of it, which was an error the church began in dissent from.
While we contend for the faith based on Scripture being the supreme authority, and the church as one body made up all regenerate souls, and who thus live righteously, they assert what Rome says as fact because she says it, based upon the premise of her claim to assured veracity.
And while treating her most liberal souls as members in life and in death, her elitist claims extend to even disallowing that the most conservative group of Prot Christians even belong to churches, properly called!
We of course, disallow that Rome is the one true church, but is overall a false church with some true doctrines, which conclusion is based on Scripture, which presents a critically different church than one which preaches entrance into Heaven once one becomes good enough, thus supposing to regenerate infants by sprinkling, by ministers distinctively titled "priests" who give spiritual life via physically eating, and offering indulgences to get souls into Heaven, and praying to the departed, etc.