From the Catechism of the Catholic Church:
"414 Satan or the devil and the other demons are fallen angels who have freely refused to serve God and his plan. Their choice against God is definitive. They try to associate man in their revolt against God."
There is ample proof in the world and the deeds of man that Satan and his demons are frequently successful. Freepers and the Religion Forum are no exception. I am sorry that you find that more offensive than filthy slurs against the Church.