Again, atheists tend to argue the LPOE terribly.

The Argument From Evil, properly stated, concludes that no god exists because it defines God as a necessarily omnipotent/omni-benevolent being. I think it's weak because it leans on a version of God that most religious people don't REALLY believe. It then leans on the fact that lines like "God is not good" or "God is not omnipotent" gets religious folks' back up.

If the only way an atheist argument wins is because the valid logic objections to it are frustrating to Christians, it's not a great argument.

But stated right, it IS still an argument for the nonexistence of God, not an argument that "God exists but is immoral".