There’s a beauty in Atheism that cannot be found in Theism.
When one stands in the awe and amazement this vast and powerful yet distant and cold universe provides, and does so thinking that no moments necessarily lead to this one, that there’s no determined future, that there’s no necessarily cosmically moral target for existence or humanity but what we think matters to us alone as the sort of beings who can think and feel this way, freedom is realized.
As a result then, the “ought” of behavior is of far more significance when observed, no matter how slight the consequences of acting one way or the other. Freely, we ourselves find life meaningful in its experience rather than thinking some other reality, some other experience after this one, is warranted or granted by our activities here and now. No, meaning is only entailed in this “now” and the Atheist recognizes precisely what the Theist cannot. That is “now” finds its meaning in us alone, not in the gods.
Were Atheism or Theism genuine choices one could make, then it seems to me the one which is morally more beneficial to believe is the case that there are no deity; it puts the whole of human experience and ownership of those experiences immediately on us; Theism doesn’t, and no matter how benign, can’t.