Don't be 'intellectually normal' or rational when faced with an incel or a blackpiller. You will only get disappointed for how many efforts you put in and even called 'a bluepiller', 'a retard', 'another stupid incel' or else.
Of course there is no such thing between non-human and human. There are only human and non-human. That they 'trichotomize' human and non-human is really a biology-threatening and ridiculously contempting behaviour and no women will fall for them because they don't even know how to respect, as well as being afraid that they also think there are female subhumans lol, ntm they just perceive sub 6', jaw being not defined, near eye spacing etc. as subhuman characterstics lol.
When I was in the r/cognitiveTesting server, to kill my time and learn Psychometrics, I even saw some members claim being inapt at quantitative reasoning is a subhuman characterstic, and other things like that. Incel cultures are really intoxicating and psychologically destructive.