Because all of life's questions can be answered in pop culture ... even as pop culture lies to you with every single breath. Which means it's up to the individual to make the call.
Right now, with several things going on in life that are not within my ability to control despite all attempts to do so, Let It Be is all I can do.
In a way, this song ties into Del Close's philosophy, maybe? Yes. It does. This is all so complicated.
I don't know if loving this song (in all its iterations) makes me a bad atheist or not. I just know that in my hour of darkness, she is standing right in front of me, speaking words of wisdom. Let It Be.
Maybe it's all due to being the atheist child of an Evangelical Baptist and a Vatican I excommunicated Catholic? Or not. I don't know.
I just know I have leaned to this song in times of strife since childhood, and it works for me. It gets me through the roil and to the other side, where rational sanity waits.