Like a lot of ideologies, it only works when everyone is on board.
As soon as one person, from within or out, doesn't want to play then its completely invalid and retarded.
The reason why communism (and libertarianism) doesn't work. The second that somebody realizes that hard work doesn't result in proportional reward, or somebody strong realizes they can form a gang and take what they want, those systems are toast, and it just goes back to might is right (which is how the world really works).
And because we live in a globalized world, its no longer "your neighbor has to be on board" to make your little communes and communities work. Its every fucking country in the world has to agree to play along forever.
The reason why communism (and libertarianism) doesn't work. The second that somebody realizes that hard work doesn't result in proportional reward, or somebody strong realizes they can form a gang and take what they want, those systems are toast, and it just goes back to might is right (which is how the world really works).
And because we live in a globalized world, its no longer "your neighbor has to be on board" to make your little communes and communities work. Its every fucking country in the world has to agree to play along forever.