Yeah, but we're not pigs, cows, fish, or chickens. We're humans, different species.
Here, if I see a pig eating a hot dog, I'm going to have the same type of disbelief as seeing a guy on the street eating a roasted human hand.
I think that's what puzzles me: seeing anthopomorphic animals eating their same predecessors. If Blacksad was eating a chicken wing or a steak and not roast cat, then I'd be all right with it.