Religion does not seem to cause nearly as many deaths as resource conflicts. 
What about all the jihad? In the big picture, it seems minor. How big a threat is religion to democracy in America? The OSE perspective is that first there must be material insecurity (financial dependence) discontent, then religion is invoked as well to organize against democratic values.
Strong idealism is a cause for all war. Only some of that idealism is religious, 7% according to The Encyclopedia of Wars. 
Religion, as opposed to spirituality, preys on taming the wild elephant, or avoiding thinking too much, or taking responsibility. The solution is becoming a creator, building the world around you
- Solved for now. Rest of its issues fall under the nwnweic topic of Solving Corruption