Your first mistake is assuming there is some collective atheist purpose.
Some atheists are anti-theists and want to rid the world of religion. Some are just atheists and don't give a shit either way. What brings atheists together in a place like this can't even really be put under one banner. What most atheists do share is a wish to be treated fairly - like human beings - without having to cater to someone else's beliefs.
Atheism is not a belief. It is a lack of beliefs. So when someone says "oh, that's what you believe" it's really fucking annoying. No. I don't believe it. I don't believe there is a god. I don't know everything, though, so maybe one of my bushes will burst into flame, who knows. But whether someone claims there is a god or claims there's a unicorn eating my rosemary, they have to prove it to me or I'm under no obligation to go along with their shenanigans. It's an empty hole, not a hole filled with definitive opinions. You see the difference?
Not all atheists are rational people. You'll do better going to a skeptic forum if you're looking for people who congregate for rationalism.
I, personally, take active involvement in denying bullshit because some of it is downright dangerous. I don't limit myself to religious bullshit though. It also causes inequality - when you're being discriminated against because you're not subscribing to someone's particular brand of BS, regardless of whether or not you're a fantastic, capable, and motivated human being otherwise, that's wrong.
Some atheists are anti-theists and want to rid the world of religion. Some are just atheists and don't give a shit either way. What brings atheists together in a place like this can't even really be put under one banner. What most atheists do share is a wish to be treated fairly - like human beings - without having to cater to someone else's beliefs.
Atheism is not a belief. It is a lack of beliefs. So when someone says "oh, that's what you believe" it's really fucking annoying. No. I don't believe it. I don't believe there is a god. I don't know everything, though, so maybe one of my bushes will burst into flame, who knows. But whether someone claims there is a god or claims there's a unicorn eating my rosemary, they have to prove it to me or I'm under no obligation to go along with their shenanigans. It's an empty hole, not a hole filled with definitive opinions. You see the difference?
Not all atheists are rational people. You'll do better going to a skeptic forum if you're looking for people who congregate for rationalism.
I, personally, take active involvement in denying bullshit because some of it is downright dangerous. I don't limit myself to religious bullshit though. It also causes inequality - when you're being discriminated against because you're not subscribing to someone's particular brand of BS, regardless of whether or not you're a fantastic, capable, and motivated human being otherwise, that's wrong.