The only problem with what you just said is that you conceded that you are technically an atheist as well. Everything you framed an "atheist" to be is, in fact, a pure agnostic. And on the religious stance, it's not that using it as a religious stance is bullshit, it's more that agnostics don't really feel like guessing and cut the cheese straight and go into the logic of "if this could really happen." Everything will divert back to agnosticism as long as we don't know about God, it's just that every other religion will say they're inherently agnostic, but don't like to outwardly show it.

Another thing is that THE EXACT THING THAT YOU SAID is actually the whole problem with any religious stance (how nobody knows but everybody believes). It's pretty much different cult followings of movies.