Marx was a tool for change in China mostly only in name. And that was limited more than Western minds have been taught. Chinese were and are good at reading between the lines of propaganda. I agree Marx was not correct in his economic theories and he certainly crossed the line in advocating violence as opposed to simply predicting it most likely. He's certainly no hero.

However, anyone committing violence or supporting the status quo which directly or indirectly suppresses is the actor that deserves most blame. Blaming a person that lived on another continent and I'm guessing did not speak Chinese (maybe I'm wrong?) is really a stretch.