If we want to cure illness, then killing germs is a necessity; if we want to drive our cars, then killing insects along the road is unavoidable; treading on insects in the grass is unavoidable. We don't do that willinging, or because we want to eat their bodies. Becoming vegetarian because we don't wish to kill animals willingly, and eat their bodies is a different thing entirely. I don't see vegetarianism as invalid at all - and neither do I see it as a statement against people who eat meat. It's a personal choice that neither harms, nor interferes with anyone else. I'm not vegetarian, but I can understand why people choose that lifestyle. When I look at a chicken hanging in my butchers shop, I see the body of a dead animal that has been killed specifically for human consumption - and unlike insects that have been inadvertently killed, and whose remains serve no purpose to us, that's precisely what it is. If I thought deeply about it, I could very easily become vegetarian.