I would say I'm an "Atheist", only because the word "Theist" exists.
The only purpose words serve are to convey meanings toward descriptions. Did you listen to the link I sent you? The narrator goes into this very thing. You are against a concept, not a meaningless word.
Think about it: from our point of view, a-theism could be seen as a lack of something that doesn't exist. Which is... utter nonsense. Yet another illustration that, by itself, it doesn't even need a word. It only exists indirectly because of the word "theism".
There is only one answer that makes any sense for anyone would obstinantly oppose a notion they don't believe exists in the first place. Only one person has said it and he summed it up in one sentence. There is only one reason for the atheist to care enough about the subject, aside from what I asserted. Who can figure it out? It was robinrohan who stated it. Everything else defies logic.
“If chance be the father of all flesh then disaster is his rainbow in the sky. And when you hear of, state of emergencies, sniper kills ten, youths go looting, bomb blasts school, it is but the sound of man worshipping his maker” -Steve Turner