I was watching Schindlers' List a few days back. Looking back at what people are capable of doing to their fellow humans if society allows it. I don't have much hope about anthropomorphized cartoons preventing people from doing what they want to do. Here we are talking about suppressing one of the strongest things that drive a human, eating. Plus, the fulfilment of this biological urge has zero social consequences. I vote, cartoons are not going to do anything.
What will however prevent people from eating an animal is if they identify it as a unique living creature that has a personality and form an emotional bond with it. Then they will be willing to kill and die before they eat that thing.
So I guess, if the animal is in the in-group of the person then its sort of naturally blasphemous to eat the animal but otherwise its fair game.