Do any theologians believe the biblical tales need to be deleted and Christianity restarted ?

It seems as soon as Constantine, Clement, and others picked and edited what they wanted and persecuted Gnostics for their own reasons, isn't this sinfull ,man-made Catholicism wrong that also protects pedophiles. This seems like a religion that is the opposite of what Christ taught. I believe when Jesus said Peter was his rock., it all went downhill from there. There needas to be a new rock not built on quicksand