Okay, dude so either diemotherfucker is an invasive species from an advanced civilization (maybe mc’s world but later) that got trapped by the second moon (or maybe they ARE the second moon) and is trying to flip the truth so they can run out the natives and have full control and access to the planet OR inhumans really are not natural to this world (either via created life or extraterrestrial) but theres obviously some components missing to that and its definitely not as simple as it seems, OR this is far far into the future, humans lost the majority of their progress to either some great war or tragedy, and inhumans are the next step in the evolution of said humans (or perhaps they were intentionally made as the next step), either way diemotherfucker is a relic of the human golden era and does not agree with this change and either was recently awoken or slowly building influence and support for his views which reached its culmination 10~ years ago. I feel this is most sensible, (but NOT most likely) as they would have to be related to humans in some fashion as to be able to breed with them, and the way the crossbreeds were explained is highly suspicious.