To be categorized i would fall into place well with the existential nihilist. Religious/spiritual human animals have a physiological disorder, sometimes willed, sometimes not.
The hard atheist is in the same category as the theist. One who knows god does or doesn't exist is a liar, because no one can know these things.
The agnostic atheist (i don't believe in god but i am not certain of its existence or non existence) or agnostic theist (i believe in god but i am not certain of its existence or non existence) are the truthful humans. Each can understand that no one knows, but choose to give an opinion on the subject based on their experiences throughout life.
It is when someone claims certainty in the absence of it when insanity begins to take hold, the hard atheists and theists face this dilemma more so than others.
Atheist is nothing but a short word to describe "i don't believe in god" some don't understand that just because one does not believe in an omnipotent all powerful creator of the universe, that they do not hold onto other fantasy based beliefs... because many still do.
When coming to terms with absurdity, sometimes it can be so psychologically overwhelming for the beginner atheist, they will choose to replace the beliefs prior with another more preferable belief system that does not use god as a requirement for the belief.
Examples:
Buddhism
Starchild
Collective consciousness
Pretty much any belief that gives one a sense of meaning or purpose in his/her existence. Something that makes them feel special or unique.
For those of you who are unfamiliar with the existential nihilist perceptions about existence, here is a very short summery. I also have a few threads on the subject going into more detail.
Existential nihilism is the philosophical theory that life has no intrinsic meaning or value. With respect to the universe, existential nihilism posits that a single human or even the entire human species is insignificant, without purpose and unlikely to change in the totality of existence. According to the theory, each individual is an isolated being "thrown" into the universe, barred from knowing "why", yet compelled to invent meaning.The inherent meaninglessness of life is largely explored in the philosophical school of existentialism, where one can potentially create his or her own subjective "meaning" or "purpose".
Lightit, this is not drama, this is philosophy. It's not for everyone.