Churches put all are welcome if you went to church dressed as satan would they let you in?
It would solve all their problems, if Satan can be saved too.
Probably not. Some churches are very selective, especially the evangelicals. I've read about churches telling people not to come back because they didn't give enough money. I've read about churches with parishioners who carry guns. I will say this: I once went to a catholic wedding and there were some homeless guys sitting in the back to stay warm, and no one asked them to leave.