"Morality requires God."

Whether you get your morals from yourself, your pastor, or God, one of two things is true. Either those morals are arbitrary, or they are chosen for a reason. Nothing about that suggests that God is the only possible reason (and I would argue that God is more arbitrary a reason than the ones we invent for ourselves), nor that God is necessarily the best reason - unless you presuppose that God is an existing being (and not just an imaginary one) that is smarter/better than humans, and there is no proof of that. At worst, you could argue that atheists are wrong. But there's no ground for you to accuse them of being, by necessity of their position, "amoral".

If God commanding his followers to commit genocide doesn't make genocide moral, then it's not God you're getting your morals from. And if you think that makes genocide moral, then you, sir, are an amoral person. A person with no moral compass, who will do anything you believe your God commands, regardless of any concept of morality, which can only pale in the face of a divine version of "Simon says".

Although the most sinister part is that nobody communicates directly with God. Either it's your human pastor doing the saying (and do you really trust him as you would trust God?), or else it's your own brain, and we have no reason to believe that the human brain can't trick us into perceiving that we've communicated with God, when we really haven't. In fact, there's more evidence for that than the alternative. And if you disagree, then how do you account for different people receiving conflicting messages from God? How can you trust your own perception any more than another's?

The only true moral compass we have access to is logic - which is something that can be debated, and made mutually agreeable compromises about. There is nothing else that can rightly be called "moral". And there is no such thing as "absolute" morality. The very concept is an oxymoron, because nothing that is absolute could be considered moral. (E.g., that all sex with minors is abusive). It is merely mandate. Pawning off responsibility for that mandate to some imaginary authority (that is as arbitrary as it is absolute) doesn't change that.