But heres the thing with evil and its established meaning. Not everyone lives in the same scociety, ergo, rules and cultures are completely different. Some would go as far to suggest that whatever is normal (in that culture) is moral. Certain tribes/religious sect still believe cannabalism is legit because its been a part of that culture for centuries and that by eating the flesh of another as a sacrifice, they are inheriting that persons soul and powers. Theyve grown to know this so it is right in their eyes. Who are we to say that theyre wrong?

See everything, in my eyes, is circular. For example, some people view Christianity in this sence: 1. The Bible is the word of God. 2. The Bible says God exists. 3. Therefore, God exists. Basically A+B=C. There isnt really any full proof evidence.