Why should the word "atheist" even exist? After all, there are no special terms for people who don't believe in Santa Clause, or Bigfoot, or the Tooth Fairy.
It is a very badly used word in many cases, since most, so called, atheists, are actually what you could call asupernaturalists or anti-suprernaturalists, since they do not believe in any thing supernatural, nor any, none theist religions, like Buddhism, Spiritualism or Animism either. So that it could well be that we a conceding to theist imperialism, since they are trying to pretend that only theist religion, (god belief ) matters.
Because there are no special terms for people who DO believe in Santa Clause, or Bigfoot, or the Tooth Fairy.
However Theists made a special naming exception for themselves, and since for all "that is" there must be the possibility of there being "that which is Not" for which the antonym naturally comes in to being.
Yes it's profoundly stupid, it's like having a word for being a non-coin collector.
It's like having a name for a color that doesn't exist.
It's like considering bald a hair style, even if that one is a bit weak.
What's the special name for someone with "good mental health" amid all the "bi-polar", "paranoid", "schizophrenics", and "boarder line personality" types out there?
Just so religion is a communicable social mental illness that can be inoculated against by simply having a bit of healthy skepticism.