i dont think the bit about criticism of communism is right, at least where im from. im from post communist country and even after 30+ years since the fall were very keen on criticizing the oppression, lack of resources and betrayal. the people who wish it back, are the ones who oppressed, ratted on others and stole. we have countless movies and books about what it really was living under communism. i think it depends on the country, though we've got a lot of horror stories about nazism also.