Elves as capitalist/fascist stand ins is the basis for my d&d world. The long lifespans allows them to create and abuse “generational” wealth excessively easily. Combine that with the idea of bloodline purity (treating half elves like abominations) and you got yourself some metaphor.
Kinda reminds me of the Vlad Taltos books, in which immortal elves basically run Rome where humans are the proles, and the rest of humanity outside of the border repels the empire with hungarian psychic wiccan squads. Thankfully it mostly dodges the whole biological essentialism thing by also having elf proles that do farming and revolting. But it was also written by a trot, so at one point the protagonist gets into wacky antics trying to get his ML wife to stop risking her life trying to overthrow the bourgeoisie lol
