Why do you use this definition of atheist
Atheism defined as belief that there are no gods is a useless and inaccurate definition mainly for two reasons;
First is that god is one of the most Ill defined words in the English language. You ask 20 different people what they mean when they say they believe in a god and you’ll get 20 different answers.
Since the only requirement to being a theist is to believe in a god, any god, theism clearly isn’t tied to any specific definition of it. Therefore neither is atheism. So that requires atheism as you’re defining it to be the rejection of every god concept that has ever been conceptualized, an absurd position since there is no way that any one person could ever conceive of every god concept let alone give enough thought to each one in order to reject them all.
The second reason is because defining atheism the way you are has no practical usage. Imagine 3 roommates; one believes there is a god, one believes there are no gods, and one has no belief either way. One of these is not like the other.
Only one of these individuals will pray at night, only one will go to church on Sunday, only one will potentially allow their belief in the divine to influence how they vote, what they believe about morality, or take seriously a 2,000 year old book.
The other two are functionally the same in every way. Both live their lives *as if* there were no gods because unless you actively hold a belief in one, there is no reason for any decision you make to be influenced by it. We live our lives according to what we believe to be real, not what we believe to be possible.
So looking at these three individuals, there is no reason to conjure up a definition that separates the last two. It serves no purpose. Im convinced that the only reason so many try is because theists cannot uphold their burden of proof so this is all nothing more than an attempt to invoke a false equivalence.