Atheism has a large component of refute the existence of God, make practice of region hard for those who are religion and so on.
There is the I don't believe in God and I'm not interested in anything more. However there are a lot of vocal Atheists who have turned it into a religion with practices, rituals and doctrines around proving there is no God and thus I elevate that to a religion.
You're describing a fictitious brand of atheism, one that I -- surrounded by friends and family who are atheists -- have never observed.
Atheists simply don't believe in any gods. Lowercase "gods", it's not exclusive to the Christian God, which a specific god we also don't believe exists.
Their rituals involve quotes of Noam Chomsky or Richard Dawkins anytime region comes up. Noam Chomsky and/or Richard Dawkins wrote their doctrines which they accept without question.
There is the I don't believe in God and I'm not interested in anything more. However there are a lot of vocal Atheists who have turned it into a religion with practices, rituals and doctrines around proving there is no God and thus I elevate that to a religion.
You can choose where you want to be.