Oh, they'd probably be stunningly ugly by modern human standards. They're literally troglodytes, after all. But I'm really not sure that's a reason not to make them. The people who raised them would certainly love them. We'd probably want to make enough to provide breeding opportunities for them. I think that's the only substantial moral quandary to be faced -- creating just one would be implicitly denying them the basic human right of finding a mate. Not being thought ugly by the majority culture just doesn't rank on the same level to me.
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