Communism assumes that humans do not have this primal instinct for survival, which, to paraphrase a line from Moo_Cow, is a bullshit mentality at its best and an insanely delusional one at its worst. Communism assumes that humans will not fight for resources, that the strong will not mind watching their strength be leeched off of by those unable or unwilling to produce for their family. Communism encourages laziness and does absolutely nothing to ecnourage productivity, because, there is no incentive to work. If someone who is weak is only going to get fed anyway, then what is the point of working? Likewise, why bother working if all of your hard-placed work is going to support someone else's family and not yours? Communism is a system that penalizes the talented, the strong, and the ambitious and rewards the lazy, the inept, and the lethargic.
             Further still, Communism assumes each person is inherently equal and that each job is of equal value. THIS IS CATEGORICALLY UNTRUE. All people are NOT equal; All people do NOT have the same intellectual and physical capacities. Some people are born with natural intellectual or physical advantages over the general populus, and these advantages are based on genetics. A highly-intelligent person retains that mental capacity for abstract thought and higher-thinking in no matter which class you place him. Likewise, someone born with metabolic genes that give him a brawny disposition has an advantage over someone who is not born with these genes. It is a harsh reality, but it is reality nonetheless: Some people are physically smarter than others; some people are physically stronger than others, in such ways that those not possessing the same advantages as these people find themselves at a definite and absolute DISADVANTAGE that is extremely difficult, if not impossible, for some to overcome. Someone who is born stupid or born with a mental deficiency CAN NEVER become as smart as Einstein. An averag...