Failed at what? Also, I take contention with your view that it was Christianity that 'gifted' Atheism. Science and improvements in the overall living standards of the population gifted us Atheism as people found that they weren't suffered with the hand given to them as much. https://twitter.com/Ahimsa_Satya_/status/976796831702306816 …
Not true. Christianity developed the critical sense that made it morally and ethically acceptable to challenge the status quo in a skeptical manner. This is subtle stuff. Christianity created the enlightenment. Pinker is wrong.