But it's not rationalists mad about this split who seem to have outsized vitriol for him. It seems to me that it's people who were not involved in that community to begin with.
My read has always been that the angry folks were always rationalist adjacent even if they weren't rationalists themselves. There's a lot of people in my IRL network, for example, who are 1-3 degrees of separation from Scott or Yud but have never posted about them or in the rationalist blogspace at all.