I adopted atheism as a necessary response to being raised in a repressive religious environment. The glob they taught me was despicable to my native moral senses and lived experience.
Frankly, I have come to believe that atheism is a superior path that more reliably produces best moral choices.
Why?
If this is it, you can make the best of it by striving to follow the pro-social path.
Sure you could use the same calculus to be a malignant sociopath and grab cash with both hands and no regard for the victims, but given that atheism is a minority view, the sociopathic calculus leads to performative religious observance as a means of gaining access to schmucks.
Yeah, frankly, I have paid dearly for my atheism and am as committed to it as any zealot. The difference between me and a Crusader? There is room for you and me both in my world. I’m not very concerned about how you cope with the salience of mortality until you force your methods upon me.