However, an acre of land can produce a far greater quantity of vegetables than meat. An enormous amount of energy is lost in producing meat.

While overpopulation is a problem the way we think about food doesn't help. If you look at food production in countries with high ovepopulation (like China), you will see that the diet contains a lot less meat than our western diet.

We do not have a population problem, there is so much land not in use that the concern of too many people is laughable.

Raising animals at the scale that producers here do has side effects ranging from land and water pollution. The pollution, animal waste and byproducts of their processing also high lights the over use of antibiotics in feed.