Are your assertions based on a careful controlled study or are they an article of faith? I'll take someone who is deeply religious but believes "to each his own" over an atheist who thinks they need to tell everyone else what to (not) believe every day of the week.
So would I, but no religion that is not pushy goes from zero to ca. 2200000000 followers in 2000 years or 1600000000 in 2600 years for that matter. That is of course not to say that every member of that religion is pushy, but it means there's some very strong built-in push to go out and convert non-believers, strong discouragement from abandoning it both religiously and from the society around you usually through required public displays of faith, pushing education and laws based on religious rather than secular reasons and so on. The futility of arguing with "{deity} says so", which has no weight for me yet is absolute truth to others is frustrating. The deep personal relation between you and whatever deity/deities you believe in is none of my concern, not really all those small tribal religions who don't feel like pushing it onto others - which is why they're small tribal religions.
Once the world is free of people who can't stand to have others believe differently from them, it will be a better place.
An atheist is not out to save your soul or help you find God or save you from eternal damnation or any of the other reasons religious people try to recruit me to their religion. Some will belittle you but apart from an annoying smugness they'll mostly be overbearing with you, like a child who still believes in Santa Claus. The militantly aggressive atheists are that way because religion has tried to dictate their lives, so they are trying to snuff it out at its roots, it's a defense to an offense. Here in Norway missionaries has become very rare and most find it extremely odd to be walking around pushing religion on people, even Jehovah's Witnesses have stopped knocking on doors. And with that the whole tension level is way down too, if you want to go to church well good for you. It's one non-pushy corner of what is still a very pushy world though.