There is no Room for Debate. The prefix a- means not. Atheism is not a religion any more than asymptomatic is symptomatic, atonal is tonal, or amoral is moral.
And it's not a "belief system," either, any more than not seeing any evidence that unicorns exist is a branch of zoology.
As for awe, I marvel at everything from the back of my hand to pictures taken by Hubble. For meaning, I look everywhere, to science and art and my own linty navel. For comfort? Okay, yeah, I do occasionally get a warm fuzzy when realizing that I'm no longer in thrall to a set of superstitions that many in the
Taliban GOP would like made mandatory. But far more often, I turn to beer and chocolate.
And nice people.
And books. And music. And ... oh, hell, there's a whole universe of comfort out there, too.