At the end of the day is going to be up to each to make this judgement call. And I don't think you're wrong for taking issue with it. I think that the fairy guy should get stoned, but I find it difficult to use it as an indictment against ZUN personally. Their entire industry hires these sort of people. Capcom, Nintendo, Sega, Konami, etc. but who knows, maybe I'm just trying too hard to give him the benefit of the doubt.
It also contains pedophiles getting killed by the titular rapist. Which makes it weird to me when I see cunnyposters with Rance pfps.