How is it "self-destructive"?...
I see A-theists just reacting to the drunk, irrational Christians, but in a self-destructive way, replacing one irrational extreme with another, that is, denying a cause of Good in the universe.
If anything it's a waste of time.
Why do you think that atheism denies a cause of Good in the universe?
You capitalized the word good, do you have a specific good in mind? if yes, what is it?
Atheists don't deny so much as they don't accept the claims of theists. Until there's some evidence, we don't think there's anything to deny, just claims and beliefs we don't accept.