There is no evidence for God. There is no more evidence for God than there is for Santa Claus or unicorns or leprechauns. However, where we'd consider anyone who believed in the latter three to be off their rocker, society gives special consideration to the first because it's a security blanket for adults. It just shouldn't be, it stops people from truly being mature and rational. It's a crutch for people who are too pathetic to just deal with reality.