I don't see what's wrong with keeping an aminals coat if you eat it? If you mean wasting the meat and driving the animals to suffer then I see your point, also I don't know as much about this. The animals and fastion I like leather its great for many things but that's about it.
take a catwalk model modelling a fur coat or my wife for instance who has a fur coat - would either of them want to own that coat if they had to kill and skin the animal/s themselves if that was the only way they could have one. It's just one of my pondering thoughts (lol)