I once called rationalists infantile, impotent liberal escapism, perhaps that's the novel take you are looking for.
Essentially my view is that the fundamental problem with rationalists and the effective altruist movement is that they are talking about profound social and political issues, with any and all politics completely and totally removed from it. It is liberal depoliticisation[1] driven to its ultimate conclusion. That's just why they are ineffective and wrong about everything, but that's also why they are popular among the tech elites that are giving millions to associated groups like MIRI[2]. They aren't going away, they are politically useful and convenient to very powerful people.