It's alright to commit genocide in the name of one's religion. It's fine and dandy to rape and torture for God. Excuse my sardonicism, but I think out of all the attitude theories, Divine Will Theory best portrays the issue of ethical relativism. Why? Think about it. How many people brought up believing in Gods, dragons, and boogey men are told that their actions can be condoned based on a divine being's wants? How often has mankind committed hurtful and cruel acts based on what God "says" is right?
Imagine if such people suddenly had no divine rule to tell them what to believe is right or wrong. What would they do? The second their golden commandments shattered and disappeared, they would be, for at least a very brief moment, without ANY type of moral code.
Subjectivism is the only realistic standpoint. Morality is something we created, just like gods, religions, and everything else mankind has put in this world to create barriers of comfort, security, and guidelines. Theories may bring up interesting arguments, but arguments for something non-existent they are, nonetheless. With all this in mind, I must only wonder if it is not a good thing that people do not examine morality in all its aspects, for if they did, on a wise scale, what could happen?