Atheists who announce "I'm good without god"

[RoadRunner79]

Who's well being?    You just seem to be trying to determine what is moral, and not making a case for what morality is.   You are making statements, and not giving reason or evidence for your position.  Morality is the principles concerning right and wrong behavior or what one ought to do.  How do you get there from evolution?

No, morality is the rules we adopt to promote human well being. Right and wrong are words we use to drive the point home, nothing more. Those rules come from our evolutionary past: they are the rule that promote well being *in humans*. Bonobos or chimps or dogs may well have very different rules based on *their* evolutionary past.
I consider most philosophical discussion concerning 'what something is' to be seriously flawed. They tend to assume an outdated concept of ontology. It is much better to determine the epistemology since that has practical aspects.

You don't think that the nature of something determines how you handle it?  And simply pointing out somethings age is not a refutation, it is a fallacy.  So if morality is merely rules, determined by society (or those with power anyway);  could we decide that what best promotes human well being, would be to kill those who are weaker and a drain on society?  The rules can simply be changed, if they are arbitrary, and call that good.  There is no morality in the rules themselves.   Is that what you are saying?

 Again, you seem to be arguing how we know what is moral and not whether or not morality is objective or subjective.   What makes you think morality is subjective?    Do you think that what is moral for one, can be immoral for another?   And I'll ask again, what in the subject is the basis for morality (is it just feelings or personal preference)?