In practical application "atheism" is a fanatical religious belief in being against all other religions.
Hence why Atheists tend to hate religions and often go out of their way to attack all (or sometimes just Christian) religions.
It's also why when Atheists get in power, they usually go on a killing spree of anyone who is not of the Atheist religion.
MORE millions have been killed by Atheists in power than all that were killed in by religious folks in power.
If other religions didn't matter, were just fables, and they actually didn't care, why would they hate other religions so much?
In America, by and large "Atheists" tend to be fanatically anti-Christian and do everything they can to try to erase and destroy Christianity while somehow being fine with Islam for "cultural reasons"...
Chinese Atheists have more power and so they are fine genociding Muslims, killing and imprisoning Christians, doing mass slaughters of FG and other religions because they don't have to pretend to be nice, you either worship the state Atheist dogma or they will kill you. Just like the original Uncle Joe...