Are you serious about this discussion? I'm not sure if I should engage, as my time is limited, and I would hate to waste it if we're not going to have a decent conversation. But I'll give it a go.
As is the case with any debate, we must define our terms. What is morality? For most people, it is a sense of what is right and what is wrong. I personally find that to be a useless subjective definition that serves to confuse, not enlighten.
Let's try to be objective. Morality is the set of rules that human societies establish in order to draw the lines of acceptable behavior across the many realms of human existence. Do you agree with this definition? If so, then we agree that morality is made up by humans, and not simply given by any mystical supernatural source. If you agree, then we can proceed with the discussion on the value of morality, and how it should be viewed and constructed. If not, I'm willing to debate alternate definitions if they are logically consistent.