I posted on these a couple of years ago.
Here's another take from Andy Unedited:
I was with a group of friends recently when another common myth of western civilization was trotted out as if it were gospel. "We all know religion has caused more violence and death than anything else."
"Well, actually, that's not true," I ventured.
Heads turned. Mouths gaped. The planet itself seemed to wobble on its axis. "What facts do you have to support that?" said the historian in the group, eyebrow arched...