* Carbon footprint of the animal products is significant. It's roughly equal to cars.
* Question about animal suffering and treatment in when eating mass produced meat. Cheap meat comes from mistreating animals. Equating human cognition with the consciousness that is able to suffer does not seem like solid argument. There is 'naturalness' argument but it's not solid moral argument.
* Meat versus 'meat'. On the other hand it's ecologically good to eat highly processed meat (as much of the animal is used as possible) including pink slime, sinew and chicken skin that most people eat as meat, but on the other had it's not exactly meat.
* Proud carnivores realize that they are actually scavengers at the meat market. Hunters and fishers may reduce their meat eating because they prefer to actually eat things they catch themselves. There is no social status in eating meat as it used to be.