they are better off not knowing. for what is the purpose of being able to differ the smell of one shit from the smell of another shit? communism is shit as well and has never worked out. it has always led countries to misery. 
marxism is the worst. It is merely a jewish lie aimed at destruction of everything that is good.
You are in a quite pathetic position if you believe in communism or marxism. You are not any better than the average retarded liberal.