Blood Saga
I'm no Satanist (I'm not a Christian either, but your guild is public so I'm posting anyway) but I think people have just as much a right to worship Satan as you do to worship your god. Just don't bother yourself over it. Let them do what they want to do, and if you believe they will go to Hell for it or whatever than so be it. I really don't see why you should mind. It's just like I have to be tolerent of Christians and all because I am not one. I've argued over this kind of thing a million times before and it never goes anywhere. In the end, people will do as they damn well please no matter what you think or say so what's the point?
Your right people were made with a free will, which lets them choose who they want to worship. That's why we are in this predicament to begin with.
Also, you call for us to be tolerant, but I am convinced that the tolerance of evil is evil. People who are going out and preaching the gospel are just people listening to gods calling. In Matthew it says to go and preach the gospel to all the world.
I also believe that us as christians are going about preaching the good news wrong. Instead of arguing about it, we need to rather show god's love, and almost literally love someone to death. God's definition of what love is, is described by what love isn't in corinthians 13. Just love people and they will learn to love too