Aside from what I've already posted about communists/socialists... my other beef is this: Of all I've read about communism and socialism, my take away is...
1) It's a gradually return-diminishing exercise. Dirty little secret of communism is that, just as any economic system, they need to trade with others in order to temporarily survive. And not just trade, they either need a trade surplus or an insane abundance of a natural resource. Eventually either the resource is exhausted or the trade surplus comes to an end. When this happens, the economy takes a nosedive and cannot recover from it. See USSR. OR, take a look at any European countries that went socialist right after 9/11 and see how they fared when the credit crunch came down on everyone. Spain comes to mind. So does Greece and Italy. The socialists basically went on a spending bonanza and dismissed warnings from the ECB about the dangers of draining the safety-net funds. They didn't even give a shit. They continued on financing things like bonus pay for the retirees, sex changes in foreign countries, free medical care for anyone who wanted it (regardless of legal status,) et cetera.
2) It requires an insane amount of people to be killed to be implemented. See China or Stalin's Soviet Union. The trail of death is really astonishing.
3) It eventually dies out. No surprise here. There isn't a single communist country in the world that has been able to implement communism without force for more than 100 years. China is an exception because it has embraced an economy that is, let's not kid ourselves, "capitalistic" and it's so God Damned big that, after almost a thousand years of living by themselves in isolated communities without the help of the State, people don't require or demand anything from the central government. So, if you have a population of 1.4 billion souls and only 35-40% of those living in the country actually require any resources from the government, it's not a surprise that those resources can be used somewhere else. Some parts of China are so remote that the government itself does not collect any taxes because it would cost them more to travel to these communities than what would be collected, so they leave them alone.