Reply #2: I think you are having a tough time with one aspect of all this.

[trotsky]

Namely, the idea that raping children can be absolutely morally wrong in a human societal context, without necessarily declaring child rape to be a universal absolute wrong. Yes it's entirely possible that on the 4th planet of the Omicron Delta 9 system, sexual activity is required for proper brain growth in the young (i.e., pre-pubescent) members of the dominant intelligent species. Some strange remnant of the evolutionary process on that planet perhaps. Yup, that is within the realm of possibility. Does it have any bearing whatsoever with being able to declare an act here morally abhorrent and absolutely wrong? Nope.

In this way it's very similar to the theistic argument that one can't prove god DOESN'T exist. Well, no. And I can't prove unicorns don't exist either. Nor do I need to. I don't have to scour every cubic inch of the universe looking for unicorns, finding none, to say they don't exist. At some point the person claiming they do needs to present evidence. Similarly, the person here claiming that child rape isn't necessarily always wrong needs to provide some evidence stating why. Just one example from reality is all you need. You've refused the multiple times you've been asked.

A "psychological hole that makes us feel very uncomfortable with the idea that everything is relative, mutable, subject to change and redefinition"? No. Just an unwillingness to get bogged down in useless philosophical masturbation.