Let's say this another way, for atheism not being a belief.
Simple question, Is off a TV channel?
Turning the TV off and on, is not a parallel of making ones choice of which philosophical nor theological belief to choose.
Atheism is not based on objective verifiable empirical evidence is based on a belief choose that God(s) do not exists.
From: Belief - Wikipedia
"Belief is the state of mind in which a person thinks something to be the case with or without there being empirical evidence to prove that something is the case with factual certainty."