Good argument.let me name a moral action towards another human being that can only be done by person with out faith. I can't
Now let's both of us name a evil action towards another human being that can only be done by person of faith. The suicide bombers
If Atheism really brings a large portion of evil our answers would not be the same as the above.
"Religion is an insult to human dignity. With or without it, you'd have good people doing good things and evil people doing evil things. For good people to do evil things, it takes religion." Nobelist Steven Weinberg