Communism looks awesome on paper, a whole bunch of people working harmoniously together and everyone is nice and nobody is any more well of than any body else.
Unfortunatly, it does not work. If you add in human elements, then it fails. First of all, it makes beleif that everyone is going to be a willing participant. That in itself breeds bitterness. Also, Communism does not alow very much room for a person to succede at all. A person in a communist country has no hope of driving a fancy sports car, or even living in a big house. It is like being born and told how your life is going to be forever. Communism also strives to eliminate struggle, which as bad as it sounds, is a BAD thing. People grow through struggle, it is a neccesary thing, otherwise without struggle and accomplishment there is no sense of fulfilment at all. People have to make a better life for themselves, and they all seek to do so in one form or another, Communism does not alow any room for this.
Communism is a great thing when it is volentarly. When people in there own goodness will help out eachother, and help out the less fortunate, and do something for the common good in there eyes.