I think we are not discussing ethics in depth enough in our soviety. What specifically is it that is unethical about the meat industry? Is it the way the cows are slaughtered? Is it that we take their life? Is it how they live their life? Can any of these arguments be made void from an ethical standpoint, if they are addressed somehow?
Since this discussion lead into brainless cows, why does that solve the ethics problem? Could it not be argued that it would be even more unethical to breed severly handicapped cows, without ability to experience the world?