Christ did start His church....not the manifestation we know as the RCC today with the emphasis on praying to Mary, Mary being born and remaining sinless, Mary remaining a virgin, the papacy, indulgences, taking verses out of context to justify false teachings, appealing to men who wrote commentaries to base beliefs, the infallibility of the pope, and on and on and one. Not one of these can be supported by any clear reading of the Bible in context.
Your prejudice, and ignorance of history, has nothing to do with reality.