The joy of being an atheist is to be wholly free in mind of any discussions that assert divinity. Once free you realise our ethics has to come from us, not diktat, tradition or history. You realise that every vile act that has been done in the name of religion is a human act devoid of empathy. You see how the manner of our cultures has provided us with systems and mindlessness that perpetuates that lack of empathy into everything: how we treat each other, the rules we write to the financial systems, how we treat animals. Not one drop of any of it comes from a god. Just us.
incapable or living up to the challenge of having an intellect that discerns ethical behaviour to be real and being too cowardly, envious and selfish to work towards it.