The best criticism of Marxism I've read is in the introduction to Human Action by Mises where he shows that the concept of class struggle, specifically class itself, is illogical.
Also FWIW I have been upvoting you as you get downvoted.
Also FWIW I have been upvoting you as you get downvoted.
"Please don't comment about the voting on comments." https://news.ycombinator.com/newsguidelines.html