Not everyone is religious. That doesn't mean their religion doesn't exist. Yours is Atheism if you believe deities do not exist.It is NOT a religion, and if you keep saying it is, I'm going to start my own tax exempt church, and start pounding on your door at dinner time.
Seriously, it sounds ridiculous when you say it.
re·li·gion
riˈlijən/
noun
- the belief in and worship of a superhuman controlling power, especially a personal God or gods.
"ideas about the relationship between science and religion"
It only sounds ridiculous to you because you want a free pass on what you condemn in others.
But atheism is a BELIEF SYSTEM!!!! You BELIEVE there is no God. Guess what! You just defeated your own argument with your definition.
You don't have absolute proof there is no God, SO YOU HAVE FAITH WHAT YOU BELIEVE IS CORRECT.
You lose, pal!
Simply having beliefs, is not religion. Everyone has beliefs, but not everyone has religion.
If you simply have a non-belief in deities, you are agnostic....not Atheist.