God is a preference, a subjective choice to respond as though God exists regardless of the factual situation (which is unknowable). There are reasons for others to be concerned with this subjective choice if it affects others but largely (taking wars, infringement of personal liberties out of the equation for the moment) it is a personal philosophy and as such it's not a matter of searching for the truth any more than searching for the truth is applicable to someone else's preferences for music, food, culture, etc. Getting someone to admit that God is a preference is pointless since someone who believes in God isn't going to suspend that belief for the sake of an argument. Some who believe in God may not even be intellectually capable of such an argument. Everyone has had the experience of trying to argue with a drunk, someone who is in an emotional state or a child and it's fruitless. We have heard the sentiment that bad things happen in large groups or that you aren't going to change human nature or such related statements. You can try to change the world but you are going to ultimately be thwarted and become frustrated. Think globally and act locally as they say. All you can do is influence things on the smallest scales. Man is going to be violent, stupid, and petty on a large enough scale and trying to change that is ultimately futile. Arguing about religion, unless it's in a political situation where other's rights are being affected, is useless.