Meh. The Taoist in me wants to say something cheeky, like maybe "It's not who you are on the inside that matters, it's what you are on the outside."
Still, I recognize the validity of the question, but am averse to doing any heavy lifting tonight. Other than to note that there is a similarly named group of ethical theories; not sure I see much greater parallels than that.
Although I'm deeply religious, and as hard nosed a materialist as you'll find here, I don't find myself breaking the world up into discrete cognitive states known as belief. This has been, and may still be, an important issue in eliminative materialism (see Stich for example); I'm just not sure even if 'belief' and its static, qualitative aspects are real that it is a useful way of carving up the world.
Anyway, I'm rambling because I have nothing substantive to say, other than that non-cognitivism may be a superficial concept which is at odds with deep structure and the nature, of, well, nature, as reflected by minds and evolution.
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