"Just because it's not normal doesn't automatically make it wrong."
It's not merely abnormal. It's essentially a mockery of the procreative process. This may not seem important to you, but I think I can speak for all traditional-minded people when I say that I consider it a slap in the face of nature.
"Let people act however they want to. Sheesh."
Yeah, sure, let's let people do whatever the heck they want! What does it matter if morality will completely collapse? Self-gratification comes before all! [/obvious sarcasm]
Honestly, if you get angry when people think atheists don't have morals, then you should refrain from saying such audacious things.
"What gives people the right to declare themselves so morally superior as to tell people that what they do is right or wrong? Come on now."
So I guess you can't tell a murderer that what he does is wrong, since you would have no right to declare yourself morally superior over him. Right.
"Homosexuality, while not productive in the way you describe it, is also not counterproductive. Or, at least, it wouldn't be if society weren't so closed-minded about it."
Homosexuality is indeed counterproductive. Have you still not looked at the statistics down below?
I vote that this argument end. It's going nowhere; I can tell that much. If you continue, however, I shall be compelled to do the same.