Morality from the ground up

[Angrboda]

So I think a rational basis for morality can be found in our moral intuitions having evolved to further our flourishing as a social species.  It isn't just one value, such as harm/empathy, but a cluster of values which benefited the animal that lived in groups because the group was stronger and fitter as a whole than any individual could be.

Does identifying this on a cognitive level immediately cause its dissipation?  As soon as we see morality in this way, it seems the very next question is-- should we serve genetic fitness, or put our minds to the task of freeing ourselves from it?

No, it doesn't. We exist in a bath of emotions which are beyond our control. "Understanding" the source of those emotions does nothing to dispel them. Also, we have the fact that flourishing as a social animal is a concrete and objective inclination created by the selection effect of natural selection. These reactions are in our DNA. No mere cerebration about this will dispel them.

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I certainly see no need to refer to biological fitness in my morality, regardless of whether or not that was it's origin.  Ultimately, we're trying to determine what is or is not right, and why - not what is or is not natural.

Indeed, you seem to be lacking any rationale for why we care about harm at all.