You made a very strong point and I respect you for that, but here is where I see that you are wrong. Humans dominate this planet, I think we can all agree on that, and yes we have altered the food chain to suit our own desires. Therefore the current state of the food chain is dependent on the things we do. Let's say we did stop eating meat. Each year there are approximately 75 million more people living on this Earth, each requiring food and nutrition to stay healthy. Now lets also assume that you are able to obtain all of your nutrients from plants, which by the way is not true. Now add the increasing amount of people in the world to the number of animals that would be eaten each day, but kept alive due to the fact that the entire planet has stopped eating meat. This is an unbelievably large number of life forms relying on a limited amount of plants in the world. Factor in the lack of nutrients in plants and it all equals world wide malnutrition over a certain period of time. I agree that humans have messed the entire balance of things up. We overpopulate ourselves, thus we are forced to overpopulate the animal world as well. Unfortunately, this is all in the past and at this current time, the food chain most certainly relies on humans.