Is atheism a belief?

[Angrboda]

Then they aren't atheists they can call themselves whatever they please they simply aren't  

This is what comes of arguing over poorly defined terms.  If I think what gives rise to god belief is an aspect of mind/consciousness, something that is altogether natural, and I say I think there is in fact something to it, then which am I?  I identify as atheist because I don't call that aspect of mind "God" and I certainly don't believe in anything at all supernatural, whatever you choose to call it.  

Terms are defined through usage, not by fiat. If you are not included in current usage, so be it, but that does not argue that usage is in some sense wrong, much less that those terms are "poorly defined." I don't think your argument against current usage is valid, but I haven't given it enough thought, either. That you are an exception to the rule does not invalidate the rule. As noted elsewhere, the original meaning of the phrase "the exception proves the rule" was that the existence of an exception is a direct reference to the existence of a more general rule. That more general rule is the existence of a broader, more common usage of the terms, which undermines your overall point.