Must eat, not for nothing else, to survive
That's what we're trying to say here but some people are somewhat delusional. Eating another human would not be wrong or anything if it's to survive in the last resort. This doesn't involve killing that human and eating him but that can occur too, but rather a freshly dead human body.
Yes, I think that only a crazy sociopath/psychopath could actually kill and eat a person if there was other food available.
I believe a larger percentage of people in a survival situation would kill and eat a person to survive. I personally could never do such a thing, but people can do strange things when they are nearly dead from starvation.
The siege of Leningrad is an example of this:
Have a read of this article, an interview with a guy who was in a plane crash and managed to survive on the side of a mountain, in part by eating the flesh of some of the victims.
http://news.nationalgeographic.com/2016/04/160403-andes-uruguay-rugby-cannibal-plane-crash-canessa-ngbooktalk/We had to eat these dead bodies, and that was it. The flesh had protein and fat, which we needed, like cow meat. I was also used to medical procedures so it was easier for me to make the first cut. The decision to accept it intellectually is only one step, though. The next step is to actually do it. And that was very tough. Your mouth doesn’t want to open because you feel so miserable and sad about what you have to do.
My main issue was that I was invading the privacy of my friends: raping their dignity by invading their bodies. But then I thought, if I were killed I would feel proud that my body could be used for others to survive. I feel that I shared a piece of my friends not only materially but spiritually because their will to live was transmitted to us through their flesh. We made a pact that, if we died, we would be happy to put our bodies to the service of the rest of the team.
I think that last part is beautiful - what seems initially like a grotesque act, becomes a statement of peace and love to humanity, giving life to friends who would otherwise have died.