Aren't the obvious risks to society of which you wrote enough?

The risk if you believe in deity are twofold; one is that your susceptibility to believe things for which there is no evidence may be a symptom of an inability to think critically or rationally at all; and the other, your susceptibility to believe *one* thing for which there is no evidence leaves you susceptible to believe *other* things for which there is no evidence.

Especially if the persuader claims to backed up by the deity in which you already believe.