Argument
Humans are omnivores
This is still debated in the scientific community. There’s a substantial amount of evidence pointing towards us being herbivores, or at least scavengers (like rats, who eat meat after the animal’s been killed by other predators). This article by William C. Roberts, MD argues that humans must be plant eaters because only herbivores develop atherosclerosis (hardening of the arteries). Technically though, we’re omnivores by definition just because we can digest meat. But this is irrelevant because we can be completely healthy as vegans, and eating meat causes harm to animals.
Having the ability to do something doesn’t mean it’s right to do so. Human beings can carry out many atrocities, and some do, but those that do face punishment because their actions are wrong. Having canine teeth or the ability to digest meat doesn’t justify eating animals in the same way having a fist doesn’t justify beating someone up.