If you take ethical veganism to its logical extreme, the only non-hypocritical solution is to kill yourself. Killing for meat is only a small part of the ubiquitous damage inflicted by humans.
Eating meat is natural for humans, while vegetarianism is a relatively new thing. Pre-historic humans were all meat eaters. Vegetarianism was invented by some Indian Brahmans a few thousand years ago, to asset their moral superiority.