Faith in what? Faith in your own hubris?
Faith in your own Narcissism?
To me, Atheists have only faith in their own hubris and that is not faith in anything, thus it's no faith at all. It places "self" at the top and everything else revolves around it, so it's a total lack of faith and is therefore only basic hubris or one could describe some of them (militant) as being anti-faith. Or Faith haters..
But I see no rational way to describe Atheist thinking as a faith. It's not like mathematics. You can't have (-faith)= (faith-faith)+ (hubris)
In religious terms, you either have faith or you have no faith.
IMO
Belief in the absence of God is still a belief. Sounds like faith to me.