People kill living beings and eat them because they are weak and they don't question their actions and it is easier for them to conform to society around them rather than to examine what they're doing. The human body was not designed to eat meat. We have flat teeth as other herbivores have for grinding grain and vegetable protein. We lack a carnivore's sharp teeth. We also lack a carnivore's shorter digestive tract (that allows the passage of bacteria-filled meat quicker). Not so long ago, the average person's intake of "meat" would have been possibly chicken or fish, and then not very often and in much smaller amounts. The meat industry as we know it today grew with post-industrial revolution capitalism. "Meat" was marketed as an attainable luxury item and the public was propagandized into going from the occasional Sunday roast to daily meat-based dinners to now where most people (Americans in particular) can't even conceive of a meal without meat. And meanwhile because of this, obesity rates have skyrocketed, as have diabetes, heart disease and many cancers; and we are polluting our air and draining our natural resources (it takes about 1000 times the amount of water to produce one kilo of meat protein as it does to produce one kilo of vegetable protein), and causing the needless suffering of billions of innocent animals. And the truth is that the vegan diet is the healthiest diet that there is, the kindest to our planet and of course the kindest to the animals. But in this day and age with all the negative propaganda to the contrary and angry weak people (as the ones who troll these forums) shouting their bile, it takes true strength of character to examine one's actions and do what's right. Integrity is difficult. If it wasn't, everyone would have it.
P.S. To the idiots who think that not being the one doing the actual killing somehow abdicates your responsibility: So I suppose if someone hires a contract killer to murder a human, the person who did the hiring isn't responsible? Only the one who did the actual killing? Gee, I'm sure lots of Defense Attorneys would be interested in that argument. Here's a suggestion: THINK.