Beeing an Atheist, does not mean that you lack of moral, ethics, or consience. In fact it could be the other way around. If you still believe that a Good should give you a higher etics, higher moral, it depends on what that good tells you. If you listen to JHWH and what he demands you to think, with all slaughter, murder killing of animals, war against enemies .a.s.f.
In my Atheistic world, my conserne, is the suffering of the living creatures. How can I help them? How can I contribute to make the world a better world. Is that a shocking philosofy?
Bugbear