One big difference the Zizians have with the LessWrong community is that LW people believe that human minds cannot be rational enough to be absolute utilitarians, and therefore a certain kind of deontology is needed.[1] In contrast, the Zizians are absolutely convinced of the correctness of their views, which leads them to justify atrocities. In that way it seems similar to the psychology of jihadists.
1. https://www.lesswrong.com/posts/K9ZaZXDnL3SEmYZqB/ends-don-t...