The Machine is real -attention! sadly emotions!

[Kman]

We are physically constructed to be meat eaters (eyes in front, incisors like you said) but humans adapted much much farther than any other animal to the point where we don't have to rely on those features and eating animals for survivalf. At this point it's really just a moral choice of wether or not you think it's right, but that doesn't change the fact that we were have adapted specifically to be meat eaters, which I think is enough to justify that it's ok to eat meat.