Why not? Socialism and Anarchy are both very popular among the fringe groups and youth demographics they’re trying to persuade into subterfuge. They’re also targeting LGBT.

Go over to Hexbear or Lemmygrad and you can clearly see tons of pro-China and pro-Russia (more specifically Pro-Jinping and Pro-Putin) posts all hours of the day, and all of it is constantly flooding into the instances that federate with them.