It would seem that you consider these to be mutually exclusive. Since Christ founded His Catholic (Universal) church on the rock, Simon Peter (from the Greek petros), what are the origins of you church if not of Christ?
Sorry to blow your bubble, but you only got half of it right. Yes, Jesus called Simon petros (little rock, pebble) but then He added that upon this petra (bedrock) He would build His church. Who is this bedrock, the Rock of Ages, the Solid Rock? Jesus Himself, so the church was not founded on Peter but on Jesus.