This can be seen in the reverence and interest they show in Remnant technology.
The exaltation process means that all kett are fanatically loyal to their species, and their species is often single-minded and ruthless, but beyond that they can and do have individual personalities that can question orders and wonder if there's really a point to the Archon's war. Always Chaotic Evil: Part of the package with being Scary Dogmatic Aliens, but played with as there is an element of Blue-and-Orange Morality (see below).While they have also been compared to the Cybermen (being Scary Dogmatic Aliens who make more of themselves via an Assimilation Plot, but only if the target has something useful to them), the Daleks have also been known to occasionally turn non-Daleks into Daleks.The kett have also been compared to the Daleks (a group of Scary Dogmatic Aliens replete with Nazi parallels - including invasive and deadly scientific experiments on prisoners), albeit somewhat inverted as they use biological sciences and genetic engineering rather than robotization, and make more of themselves using the former two.They also share an interest in genetic modification and a strong hatred of AI's.
They've been compared to the Yuuzhan Vong, being extragalactic Scary Dogmatic Aliens who are Type I (Aliens as Nazis) and Type III (Aliens as Religious Fundamentalists) with an element of Blue-and-Orange Morality.Not to mention their love of plasma weaponry. They're even technically multi-species, as they are made up of various alien races turned into kett. This is because the kett are also an expansionist empire of Scary Dogmatic Aliens drawing on Type III (Aliens as Religious Fundamentalists), a fixation with ancient technology and eventually fall victim to infighting. The kett have been compared to another group of Scary Dogmatic Aliens the Covenant Empire.Alien Animals: The Wraiths and Fiends are kett animals which were exalted, and are usually kept under control by pheromones.If the kett ever do express any non-xenophobic attitude toward an alien, it's only because they see something useful in them. Most, if not all, kett even use the "It" Is Dehumanizing trope and only use names or titles for the purpose of identification when speaking with or about non-kett. Absolute Xenophobe: The kett master plan is to kill all non-kett life they can or turn them into kett, even including animals.They come into conflict with the Milky Way explorers of the Andromeda Initiative. A highly advanced race of humanoid aliens that invaded the Heleus Cluster eighty years ago and have been at war with the angara ever since.