Marx did not believe in the ideas that he authored. He propaganda was inspired and financed by the elite banksters who launched communism.
I’d be careful with that position. For all I know you are a stout supporter of Israel, don’t have an anti-Semitic bone in your body, and may even, yourself be a Jew. But in most discourse which asserts that bankers were behind Marx and “launched communism” as you put it, “bankers” is code for “Jews”.
I think the old beardy-wierdy actually believed his own claptrap. His critique of capitalism had a certain plausibility back in the 1840’s and 1850’s that is lost when democratic polities (whether republican or constitutional-monarchical in form) begin mild regulation of business and legalized union activity, then lost completely when attempts to implement his ideas turned into bloodbaths and stock-options, pension plans, union bail-outs of companies and the like resulted in “workers” owning the “means of production” in the context of a capitalist economy.