From the comments:

Also, on Marx being racist/sexist… Black Slavery was still legal in most of the world, and women were still second class citizens at best. It wasn’t because he was “actually a bad person”, like idiots and anti-leftists are trying to say, it was because “Blacks and Women are lesser” was as ingrained into society as “murder is bad”. Refusing to acknowledge this historical context is exactly what anti-free thinkers want, as it lets them tell people to stop learning from past figures because they were “bad” and poisoning the well of ideas before the person has a chance to form an opinion.

You have to suddenly care about historical context when it comes to realizing how shitty of a person Marx was. No, no, the context...