I thought it'd be all about worker rights, but I'm seeing how the sociopaths that actually went to implement communism did all those mass murders "for the common good". It makes sense why, almost globally, in anything but extraordinary circumstances communism is really only supported by urban proles, and the idle.
I had many biases before reading this, and who knows what translation I got, but it just felt so insidious. It talks about humans like worker ants in an ant colony.