Communism

what's so bad about it again?

Agreed it's not something that should be shoved down the throat of the populous, but rather chosen after going through capitalism and then socialism. If a country realises they all must work together for the betterment of the nation rather than the individual, what's wrong with that?

As long as people are human, communism won't work the way Marx intended. The same goes with capitalism, or pretty much any other idealogy.