What is your opinion on eating rude and arrogant people ? Maybe he didn't know that he is insane and thought the whole world as insane. Could he be right???
Well maybe he thought that. But Still whether u think someone is insane or just rude, I do not think that gives u an excuse to eat someone.
I hope your not asking this question because you feel that way. If you do please try to refrain from eating anyone.
Why are you asking a question about the morals of a fictional character? Are you becoming a cannibal yourself? You shouldn't eat people, even if they are rude.