Of course the revolutionaries did not want it to be a dictatorship and yes I agree that's what happens when you create a oligarchy but that is, like I said not true Marxism. Anyhow not true Marxism has been tried and since the world now hates communists I doubt we will ever get another go. 

As to what Churchill said, yes all the other systems tried so far have not been as good as democracy but Marxism has not been tried.

And yes I have to agree with you most people have been taught to fight against communism from a early age.