I want to identify with something that reflects my values and principles.

Humans are social animals and most have always been interested in occult, Nothing wrong with indulging in it right? Especially when it can lead to your self betterment, I guess. The only aspect of the religion we consider theatrical is our usage of ritual. In my opinion satanism is pretty much the only ideology that admits this.
The fallacy with atheism is that humans still have that need to belong, we still "crave" ritual and the sense of community (not for everyone but I guess for the most).

Also important: There isn't only one religion that calls itself Satanism, LAVEYAN Satanism is similiar to Atheism and thats what I believe in.

I devote my life to myself, believe in science too and dont behead goats basically.