My identity isn't "atheist", it's just a term that reflects my stance on one single question, namely "do you believe in god(s)". You too are an atheist if the question is "do you believe in Thor?" And the term says nothing at all about whether or not I "hate" religion, or any other aspect of my person. Some atheists hate religion, some atheists like tacos, some atheists have bicycles. Some of them are interested in religion, some aren't.
It has nothing to do with power either, again it's simply a statement about a particular belief, or rather a lack of one.
I'm not sure what that book you linked to has to do with it.