I agree that we atheists have no objective grounds for our morality, but neither do theists. If you think some deity has dictated a list of do's and don'ts, demonstrate66

it's so. If there is any deity, he's a master of hide and seek, so I do not believe your claim that any list men made was dictated to them by a god. I'm open to evidence supporting the god claim, but I've been asking for that for 30 years, and have yet to hear anything but claims based on fallacious arguments.

Even if morality were to come from a god, it wouldn't be objective, it would be that god's subjective opinion. But I'm not believing it came from the world's champion of hide and seek.