Yesterday I wrote about agnosticism and/or atheism. I neglected to mention that one does not need to commit to a single philosophical position towards different ideas about god, just as one does not have to have a single attitude towards different purported scientific theories. Some purported theories (e.g. Intelligent Design) are not falsifiable (at least not as typically presented); some are false (phlogiston, the luminiferous aether); many, of course, are actually true.
There are eight skitty zillion different conceptions of gods. Some differ only in the fine details, others are completely different at a fundamental level. The ideas range from Deism and Pantheism to intentional or unintentional absurdities such as Christianity, Islam or the Church of the Flying Spaghetti Monster.
Still, in a long-established running debate, one must settle on a label. One reason I myself have settled on the label "atheist" is because, fundamentally, I have the attitude, "Tell me what definition of 'god' you're using, and I'll tell you why the idea is bullshit."
If you define "god" as unknowable, it's bullshit because it's meaningless. If you define "god" as difficult to know, it's bullshit because it's irrelevant. If you define god as practically knowable, it's bullshit because it's false (and almost always obviously false and egregiously stupid).
(And if you define "god" as known to be true, it's bullshit because it's trivial. Yes, we know everything that exists does exist, but to define "god" as merely "everything that exists" is trivial unless you assert that "everything that exists" has at least some of the properties typically attributed to god, such as a separately determinable consciousness.)
One could just as easily refuse to call oneself a scientist (in the philosophical sense) because it's impossible to refute every form of pseudoscience with the exact same argument. Intelligent Design is bullshit for different reasons than is Velikovskyism, which is bullshit for different reasons than crystal healing woo-woo, which is bullshit for different reasons than are insane conspiracy theories.
Atheists don't have to be defensive just because religion comes in many different flavors of bullshit. The flavors may vary, but it's all bullshit.