Oops, 113 was for you.
You can call the RCC the church of Satan for all I care. What matters is Truth, not YOUR version of the truth or MY version of the truth, but Truth. "Truth" without a controlling authority is nothing but "opinion". The controlling authority of Truth is the Holy Spirit. Since the Holy Spirit does not physically manifest itself (other than in the form of tongues of fire, wind, and a dove), it manifests itself spritually, requiring a human vehicle to deliver and confirm said "Truth".
It's utter insanity to presume that the Holy Spirit invoked a system of delivering truth based on what you and I FEEL is right. Billion and billions of Christians later, we have 20,000 Protestant Churches and still only ONE Holy Catholic and Apostolic Church - the guardian of Truth, whether you want to believe it or not. Because, frankly, opinions are like... well, you know.