Why are atheists very zealous for their atheism, leading people to think it is a religion?

Many atheists get very religious for their atheism, with: -Atheist mega churches -The first church of atheism, where you can become an ordained minister -Monuments to atheism -Atheist doctrines (dawkind / haris / hitchkenz) -Atheist summer camp for kids -Atheist preachers -Atheists zealous and dogmatic for... show more Many atheists get very religious for their atheism, with:

-Atheist mega churches
-The first church of atheism, where you can become an ordained minister
-Monuments to atheism
-Atheist doctrines (dawkind / haris / hitchkenz)
-Atheist summer camp for kids
-Atheist preachers
-Atheists zealous and dogmatic for their atheism in R&S.

It's no wonder so many people think atheism is a religion. If they don't want people to think that they should really work at scaling it all back, so why don't they?
Update: Zealous atheists are already infecting this question with their dogma, trying to avoid answering the question. Why?
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