Here is a good and informative article
According to a disturbingly pleasant graphic fromInformation is Beautifulentitled simply 20thCentury Death, communism was the leading ideological cause of death between 1900 and 2000. The 94 million that perished in China, the Soviet Union, North Korea, Afghanistan, and Eastern Europe easily (and tragically) trump the 28 million that died under fascist regimes during the same period.
During the century measured, more people died as a result of communism than from homicide (58 million) and genocide (30 million) put together. The combined death tolls of WWI (37 million) and WWII (66 million) exceed communisms total by only 9 million.
It gets worse when you look at the lower right of the chartThe Natural Worldwhich includes animals (7 million), natural disasters (24 million), and famine (101 million). Curiously, all of the worlds worst famines during the 20th century were in communist countries: China (twice!), the Soviet Union, and North Korea.
Communism is a killer. And yet some still say they support the idea: According to a 2011 Rasmussen poll, 11% of Americans think that communism would better serve this countrys needs than our current system.
Deaths from laissez-faire capitalism - 0
Deaths from communism - 94,000,000
Communism is the most violent and destructive ideology in human history. I think it is clear which is the moral social system, and which is not.