The ideological ecofascists (as opposed to the pejorative applied by right-wingers to environmental activists) are basically one step removed from the kind of environmental extremist who believes the best thing for the environment would be the extreme reduction or extinction of humanity. The fascist version is just more specific about which classes of humanity should be eliminated.
But yes, they do drop in all sorts of mythological woo to make their genocidal thoughts seem noble and virtuous. The milk-drinking nonsense places a sheen of pseudo-scientific genetic determinism as to Darwinian fitness on the whole programme.
