Chrissakes, Nutcakes, Half-Bakes, High-Stakes

"Spineless from the start
Sucked into the part
Circus comes to town
You play the lead clown
Please, please
Spreading his disease"

Metallica - Leper Messiah


You wake up in the morning, look around the room, check in your closet and under your bed, don't see any gods around and therefore go about your day on the assumption that there are no gods.
This plan of action based on that simple observation is not special. It doesn't need a name. It's certainly not a lack of anything, an "a"-whateverism. In-sanity is derived from and noticeable in contrast with the sanity we take for granted, not the other way around. If you don't believe in the supernatural, you're not an a-theist, you're not bereft of theism. You're not special. You're just sane. Plain-Jane brain unrestrained no refrain sane.

If, however, you go to sleep every night thinking Jesus Christ is lurking under your bed clutching a tire iron, you are nuts. Bonkers. Bananas. Batshit looney-tune crackers and fruitcake in-fucking-sane!
Why a tire iron? Hell, I dunno, pulled that one right out of my ass but it still makes more sense than a two thousand year old zombie riding a cloud and watching you masturbate, doesn't it?

If you think someone grabbed your ass on the subway because Jupiter's in retro-grope, if you think words like "chakras" and "chi" translate as anything other than snake-oil or that tarot cards are anything other than doodles on cardboard, if you think boiled tea-leaves know something your baked brain doesn't or the lines on your hands are anything other than folded skin, then ditto. You're insane. You cannot discern fantasy from reality.

Sure, sure, you don't live your entire life by those rules. You put one foot in front of the other along the sidewalk based not on tarot card readings but on the physical laws of motion - and that is what makes you in-sane. Superstition by itself is just stupid. Those making some ridiculous claim like "throwing salt over your shoulder wards off wer-wolves" have to back up their claims with evidence and they never do; they demand your blind belief in pigs in pokes.
By the way, it doesn't. I like saltines.
However, to move and breathe and trip over your shoelaces in the real world every single minute of every single day of your life, year after year, and still believe the universe is being run by some intelligent designer is not just stupid. It's crazy. Holding a stupid explanation true while surrounded by the smarter one is crazy. You're faced with sanity every waking moment and choose to believe the opposite. You are insane. You are not a functional, competent mind. You should not be voting. You should not be breeding. You should be in a halfway house being taught how to tie your damn shoelaces yourself instead of trusting Geebus to tie them for you.