>>93118481He lives in a world full of complete fucking idiots and the only other people he can have an intelligent conversation either wants to kill him, doesn't want to be bothered by him, or is too busy being the sole reason the planet hasn't been destroyed yet
So he ends up becoming an obsessive asshole who is still too retarded to win against a rejected alien from space. The only reason he still tries to stop Zim from taking over is just so he can be right and actually prove it