> I'm an atheist because I believe in one less god than you do.
That’s not a reason, it’s just the definition of atheism. Why are you an atheist?
> I'm spiritual as fuck, and while I may have my issues, autism is not one of them.
I’m not sure we mean the same thing by spiritual. For example I believe, as St Augustine explains so marvelously in his Confessions, that God is a purely spiritual being.
Do you believe that a spiritual reality exists independently of the material one and that human beings are both material and spiritual creatures? If not then you aren’t as spiritual as any vulgarity because you don’t actually believe yourself to be spiritual at all.
I don’t want to impute beliefs to you that aren’t truly yours though, so unless you choose to clarify I’ll just consider that one possibility.