Marx is the wrong go-to guy on socialism. He made some analytical critiques of capitalism which may or may not be true or relevant to our current conditions. If the above excision of his writing is genuine, the guy was a hard read as well. I know for sure his followers took advantage of dense turgid prose to indicate they knew something. But the Communists were merciless brutal power players and their first victims were Socialists, whom they successfully defeated by framing the issues and branding them Mensheviks, which meant 'Lesser' Party, when in fact the Socialists outnumbered the Communists.

There are better sources to go to for Socialist information. But as for Communists, "Danger Will Robinson!"

Communism is to Socialism what Fascism is to Republicanism.