U atheists are in no position to talk about true and false beliefs.I don't believe in the Quran because it makes no sense. Atheism is not a thing you can subscribe to. There's no atheist creed. I'm just not Muslim and I've been labeled atheist.
Bc u have survival and reproduction as an explanation for bio chemistry genetics psychology and linguistics. The problem comes when a atheist try to give explanation on true and false beliefs. For example some mushrooms are poisonous and u can survive on believing they are all poisonous. So if u can survive on a true and a false belief. How can u make a distinction between the two? How can u say our mind is trustworthy, when our mind wasnt geared for truth but survival?