You are quite right about stardust and good habits. It seems to me, though, that many people use "god" (and especially "God") to refer to something quite different from "some higher axiomatic meaning".
If that's all we're talking about then there are barely any true atheists.
A lot of people utter things like "I love my partner", without actually having a clue about what that means, and living miserable lives destroying each other... But why talk about that? ;) I want to focus on the best meaning of the words, the useful meanings, the ones that matter. Not about how there are a lot of people that use the words in weird ways and who don't mean what they say.
If that's all we're talking about then there are barely any true atheists.