Spot on. I work at a homeless shelter and the majority of donations - of money, food and other products, and volunteer hours - come from churches and church people. We could not function without the support of local Christians.

The Devil can't create; he can only distort what God has created. The state of Christianity in America, where a very vocal minority of so-called Christians have twisted the teachings of Christ all the way around, is the best evidence I can think of for the Devil's existence.