I read the entire thing. It still doesn't change my point. You said atheists don't share a common belief, which is absolutely not true.
No, I said they don't share a common belief like followers of religions do. Followers of all religions share a common belief of a higher power and/or an afterlife. Atheists don't share that common belief.
Let me dumb this down for you: if you DON'T collect baseball cards, you don't have a common hobby with others who don't collect baseball cards. See where I am going with this? The absence of a belief is not a belief.
You, like many others, don't fully grasp what atheism is. Atheism is not a denial of a higher power. It is a lack of belief of a higher power(s). There is a difference between the two.