Aleksandr Solzhenitsyn gave a lecture to the AFL-CIO in 1975 in which he said:
Communism is as crude an attempt to explain society and the individual as if a surgeon were to perform his delicate operations with a meat-ax. All that is subtle in human psychology and in the structure of society (which is even more delicate); all of this is reduced to crude economic processes. This whole created being--man--is reduced to matter.
He told the crowd explicitly that communism is not an ideology based on a higher truth, that it can't be defended by any real argument, and that it has always openly been opposed to freedom, which can be seen, he noted, if anyone actually reads what Marx wrote.
So who would fall for it?
Apparently the AFL-CIO. No one in attendance that night must be around today because Richard Trumka signed and pledged the organization's support to the 99% Spring movement whose letter states that our collective suffering is a result of "rampant greed—the deliberate manipulation of our democracy and our economy by a tiny minority in the 1%, by those who amass ever more wealth and power at our expense."
Compare this to the sentiment plainly expressed in The Communist Manifesto of 1848:
Society as a whole is more and more splitting up into two great hostile camps, into two great classes: Bourgeoisie and Proletariat... The bourgeoisie has at last, since the establishment of Modern Industry and of the world-market, conquered for itself, in the modern representative State, exclusive political sway... It has resolved personal worth into exchange value, and in the place of the numberless and indefeasible chartered freedoms, has set up that single, unconscionable freedom---Free Trade. In one word, for exploitation, veiled by religious and political illusions, naked, shameless, direct, brutal exploitation.
The rhetoric of class warfare hasn't changed. How awful that, after everything the 20th Century showed us, people are still deceived.