The same problems that plague capitalism plague communist implementations.
In power structures, things are great if you're part of the class that receives political favors and not so great if you're not.
In capitalist societies, capital owning classes have the time and resources to be the political class. In previous communist societies, party and administrative members were the political class.
"In capitalist societies, capital owning classes have the time and resources to be the political class. In previous communist societies, party and administrative members were the political class"
This sounds like theory. In practice, capitalism beats communism in pretty much every way. Of course there are people that own capital. Private ownership is one of the main tenets of capitalism.
Capitalism works because it is on the correct side of human nature. It pushes people to earn more capital, which in turn, helps the rest of us.
Do you think our technology would have advanced this far if we didn't have capitalism? The only reason computers, phones, the Internet are getting better and better is because of competition. The more competition in a market, the cheaper the price is to us, the consumer.
Communism, on the other hand, makes everyone a slave to the state. Why would you want to compete and earn more when it will just be taken away from you by the government?
There were many experiments in the 1970s with communism. People created their own small communities and shared everything. Everyone was equal. The end result was always a disaster: jealousy always fueled the collapse of the group.
Would you want the person in school that never studied for his tests and partied every day to earn the same amount as you, who studied for every test and did well? I sure wouldn't.
Communism, in any form, is a failure. I don't know how much death, poverty, and famine we need to go through for some people to learn this.
In power structures, things are great if you're part of the class that receives political favors and not so great if you're not.
In capitalist societies, capital owning classes have the time and resources to be the political class. In previous communist societies, party and administrative members were the political class.