Please read my one principle again brother, what you described above follows this law, the people eating knew they could be eaten, and they were ok with that. Stealing is wrong, but if you and I agree that we can take each others property without asking, is that stil wrong? One good real life example would be say student accommodation. Also if you look into cannibalism, people normally ate their enemies or enemy/other tribes, rather than their own relatives etc... Salam Saqqib