spendius wrote:That's right..
It isn't really that they "don't". It is that they can't.
All their philosophy goes awry if they do.
Spendius, I would not describe myself as a "hardcore evolution theorist" any more than you would consider yourself as a "hardcore believer in molecules" -- yes, I certainly believe it, but it's not an issue of uncertainty.
Along with these beliefs come, usually, other beliefs such as the lack of a set purpose in life, lack of belief in spirituality, destiny, god, and spiritual sanctity of a relationship.
This does not, however, prevent people like me from recognizing and valuing a relationship on purely logical grounds. Even the most logical of us still have emotions that govern our behavior. Love, respect, trust...these are reasons not to cheat on a person that any evolutionist can recognize.
I'm sure there are some evolutionists who would happily cheat on their S.O. behind their backs, but that has nothing to do with believing in evolution.