Atheists have done a poor job of using the tool of "community".
Religious people often form community groups centered around religion (church) to engage in social activities, charity activities, children's groups, discussion groups, and just a general sense of supporting each other. There's no reason such groups couldn't also center around atheism, and having groups like that (atheist alternatives to religious churches) would probably help more atheists come out of the closet and help atheists live a more communal and satisfying life.
In general, why is it that "religion" has a monopoly on "church"?
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