[SeekAndFind]

I'm happy to have my group write the rules, as I consider them to be better for people to live under.

Notice you are appealing to personal preference again, not to what is INTRINSICALLY good or bad.

Let's say that Hitler won the second world war, would gassing Jews be considered evil ? If it is, on what ultimate basis do we ground our saying it is ? It becomes his personal preference against yours. There is nothing evil in what Hitler did then, it all becomes a matter of personal preference. As long as you agree that this is so ( if Dawkins is correct ), then I have no further arguments with you. You would then be logically consistent.

[Blackacre]

Let's say that Hitler won the second world war, would gassing Jews be considered evil ?

Depends. If the Nazis conquered the world and were able to basically brainwash everyone into their ideology, then gassing Jews wouldn't be considered evil. But such an outcome was never really within the realm of possibility.