I though Marx was very dull as well. But he got his (idiotic) ideas across. Besides the Bible, his ideas changed the world, for the WORSE. How many people know what that murderous philosophy actually amounted to in lives lost and ruined?
Did he even write about communism except in very vague terms? I think that was filled in by others later. He’s a materialist spin on Hegel; where things were and where they are headed in their constant forward motion.