You can remove religion and morality from that statement and it'll still be true. People will at times behave pretty abhorrently. Stalin wasn't religious, but

You can remove religion and morality from that statement and it'll still be true. People will at times behave pretty abhorrently. Stalin wasn't religious, but he still initiated a gigantic slaughter of his own countrymen. Ditto Mao. Just trying to make the point that being horrible correlates with being human, not being religious.