Atheism is a position held with certainty that there isn't a god.
If you have to substantiate it you have to appeal to a different cause unless there are other argumentation i am not aware of.. Like appeal to no cause.. Which still seems natrualistic
Ofc that mental gymnastics comes in the form of science, philosophy and argument against what theists claim directly like attributes of god etc
Because atheism is an appeal to naturalistic causes not supernatural.. that universe and existence came to being by a random natrual event.
That's the fundamental difference between atheism and theism and you have to appeal to science and logic to argue the atheistic position.
So saying that athiesm doesn't entail beliefs is dim-witted and ignorant
Its a belief in naturalistic causes of the universe and not supernatural.
Lets go and discuss it in Afghanistan
I'm sure they'll have proper answers