It could be argued he is the most evil person ever born. I personally agree with that argument.
No
Did not his philosophy destroy the human spirit? Did it not force individuals into a collective? Did it not put forward the nauseous theories of "state ownership" and the "Labor Theory of Capital?" How many were murdered on the alter of reaching his utopian system? Marx murdered the human spirit and his system degrades the rights of man. He is the ultimate of all evil.
Karl Marx didn't run any countries. Do you also blame JD Salinger for the murder of John Lennon?
Or Matthew, Mark, Luke, John, Peter, Jude, Paul, James, and whoever wrote Hebrews for the Crusades and Inquisitions?