Three ugly sisters

There are three things that can really turn somebody to a zombie: religion, nationalism and ideology. The third one is the weakest one and wears off quicker than her older sisters because of less stigma attached. If a person is giving up his religion he is often called a heretic and is threaten with hell. If a person is giving up his nationalism he is blamed to be a traitor of his mother/fatherland. And anyway, the ethnicity and the place of birth is not somebody can easily change. But ideology... Look what happened to communism...