Here's some quote from Marx and Engels which could be A PART of an explanation for what happened in the "communists" countries. I couldn't find the most interesting quote on these topic, and cant really go in an extended explanation in my foreign english, but I urge people to read Marx and Engels instead of knowing them through intermediary.

"The Commune was formed of the municipal councillors, chosen by universal suffrage in the various wards of the town, responsible and revocable at short terms [...] Like the rest of public servants, magistrates and judges were to be elective, responsible, and revocable.[...] Instead of deciding once in three or six years which member of the ruling class was to misrepresent the people in Parliament, universal suffrage was to serve the people, constituted in Communes, as individual suffrage serves every other employer in the search for the workmen and managers in his business. And it is well-known that companies, like individuals, in matters of real business generally know how to put the right man in the right place, and, if they for once make a mistake, to redress it promptly. On the other hand, nothing could be more foreign to the spirit of the Commune than to supercede universal suffrage by hierarchical investiture [...] The Commune made that catchword of bourgeois revolutions - cheap government - a reality by destroying the two greatest sources of expenditure: the standing army and state functionarism. [...] It supplied the republic with the basis of really democratic institutions. [...] It wanted to make individual property a truth by transforming the means of production, land, and capital, now chiefly the means of enslaving and exploiting labor, into mere instruments of free and associated labor[...] What else, gentlemen, would [this] be but communism, "possible" communism?"
The Civil War in France, Karl Marx

"Question:Then you do not believe that community of property has been possible at any time?
Answer: No. Communism has only arisen since machinery and other inventions made it possible to hold out the prospect of an all-sided development, a happy existence, for all members of society. Communism is the theory of a liberation which was not possible for the slaves, the serfs, or the handicraftsmen, but only for the proletarians and hence it belongs of necessity to the 19th century and was not possible in any earlier period."
Draft of a Communist Confession of Faith, Friedrich Engels
(note that ALL "communist" revolutions happen in country in which most of the population where peasant)

"Will it be possible for this revolution to take place in one country alone?
No. By creating the world market, big industry has already brought all the peoples of the Earth, and especially the civilized peoples, into such close relation with one another that none is independent of what happens to the others."
Principles of communism, Friedrich Engels

Karl Marx never actually defined how a communist society is supposed to function in principle he only postulated it as a emerging system given his more thorough criticism of the capitalist system.

Furthermore communism in its form of being a system where the commune as a whole would possess power has not been implemented ever, eventuality always lead to a emergence of a upper class controlling the other equalized classes, the so called politburo.

Eventually leading to dictatorship and totalitarianism.

The short answer: communism doesn't work.

(note that ALL "communist" revolutions happen in country in which most of the population where peasant)

The population ends up as peasants. The first things communists do during a takeover is kill en masse all intellectuals (teachers) and skilled laborers, ironic since they're the ones that initially support (or pretend to support) communism.

Marx thought The System could work without profits. Boy, was he wrong.

There in an innate desire of every human being on earth to feel important, even in a minor way. Communism ignores or suppresses this desire, that is why it will always fail, even in a theoretical country with 100% employment, 100% literacy and quality food and medical care for everyone.

You're fighting the shadow of communism QM and Farhad start reading for someday you'll have to fight the real thing. Until people remain much ignorant about communism your arguments stands quite chances but not further.

You could start by watching http://www.youtube.com/brendanmcooney in order econ 101, 102, 103. It's not perfect but at least you stand a chance of criticizing actual Marxism.

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