Metaphysics, Ethics or Epistemology?

H.E.Baber has a very interesting post here about the Murcan distaste for atheism. As usual she makes some very good points. I don't know if she would approve of the label but there is much of the 'ordinary language' philosopher about Dr.Baber. I have suggested that one possible objection an atheist might have to religion is the dubious epistemology required for a belief in god, pace Alvin Platinga. I did not comment on the point H.E made about the apparent human need for a metaphysical grounding for ethics - so I'll make that point here.
Ethics and aesthetics are part social construct and part subjective construct. They have no meaning apart from their social or subjective context. Plato was horribly wrong about essences and forms, and generations of clerics have seized upon his conceit to justify their dualism. We need more writers like H.E.Baber. She wears her head on her sleeve.