Earlier quoted context omitted.
He's not the same as Stalin, but he certainly caused him. Marx was basically the founder of a secular religion and like the theistic kind, religions attract scoundrels because they see it as a way to power. Stalin himself studied to be a priest before he changed religions.
Marx wasn't the first, and he wasn't the last to argue for a community/worker owned and operated economic system. He's just the best known. He might have co-written written a manifesto, but had he not another would very likely have. It was a long time coming. But that's really besides my point. Importantly, Marx did not advocate for a totalitarian political regime. That's a big deal, because that's a defining element…
Did a military underling write that?
Try asking anyone at all what their views are on a suggested policy saying "we will make it impossible for you to own private property!" It's delusional to imagine that such a program could not be accomplished without a totalitarian revolution.