Christians take on the more nihilistic atheists

[robvalue]

Further thought:

Appeals to determinism are pointless in an argument. If your premise is that no choices are being made, then your own use of the word "should" becomes meaningless. So saying I "shouldn't call it morality" is itself a value judgement, and indicates I have some sort of choice in the matter.

So we either agree that "should" is a word with a meaning, or else there is nothing to discuss except hard science.