It is the atheists who are the all-time champion mass murderers That is a bit over the top, but not wholly atypical. To each his own. My dad was an atheist, one of the finest individuals I ever knew, and he didn't advocate mass murder once. Neither have my two brothers. I don't either (although I am a not quite an atheist but close). Have a good evening.
My late husband said he was an atheist. He was the most Christian-like person I ever knew. He would debate me on religion but never taunted me. He didn't object when I had our daughter baptized either. And when he died, I buried him with a Catholic Mass and in a Catholic cemetary.