Veganism is a species inappropriate diet, if we were in a human zoo the aliens would not feed us that.

Affording high quality animal protein is a problem, especially today. It makes sense to get as many people as are willing, even enthusiastic, to eat peasant food. Brazil is a good example, their meat costs are the same as in the US despite the weakness of their currency so the average Brazilian rarely eats it. If we're not there yet in the US, we're heading there.

Meat is becoming a luxury beyond the reach of the common person.