Do you not believe? Or just wish to fight religion as an easy target?
Do you not fear God's wrath? Or have you just changed it to natures wrath, or that of the cosmos? And those might keep humans destructive nature in check, but what's to keep their morality as well?
Do you not believe in afterlife because of lack of proof? Because spirituality is marketed? Or because you've never had to give a grieving mother peace and hope?
Or is it that their beliefs run back two thousand years and seem to fight progress? Because it's easier to deny religion than to evolve it, separate it or change it, like it has evolved in the past?
Or simply because you believe in the new cult of science. Pure, rude, unchecked machiavelism. Where we sacrifice our humanity for humanities sake.