If everything has a purpose then evil doesn't exist

[R-Farmer]

You continue to fail at this line of questioning because you ask an objectivist what makes one relativist morality “better” than another.

You are 100% correct. I'm failing at this line of questioning Miserably. But, probably not for the reason you think. 

As you still think these questions are about judging actual acts. When in fact the discussion is about separating man's standard of right and wrong from God's. In an effort to demonstrate that if you here now today with your object morality intact, would not question your morality now, You being the same person, would not question what society told you was moral if you were born in another time or place. I failed here because you don't seem to understand the base nature of this discussion. you want to argue irrelevant details and I'm trying to bring you into a deeper discussion. I do apologize for my short comings/ability to communicate with you more effectively.

A moral objectivist contends that -all- relativist moralities are false.   The idea…to an objectivist…that kiddie fucking is good or bad because a god says so…or good or bad because a society says so….is a complete non-starter.

again, "K/F" aside, ( you are still arguing irrelevant details) I'm asking what tells you this or any other morally objectionable act is to be considered evil behavior?

I contend objective morality is just generational form of relative morality. IE, it is wrong because your father told you it was wrong, and His father before him and so on back till at one point it for whatever reason it wasn't. 

I am also pointing out without God as a point or foundation to your moral/Righteous objectivity, if you lived in a time where "K/F" was not generationally prohibited there would be nothing to stop you from indulging in this sin or any other.