In addition, religious groupings are responsible for a small fraction of the deaths linked to secular belief systems. Just think, for example, of the Ukrainian famine of the 1930s - the largest man made famine in recorded history.
I think that’s a very big claim, particularly when you take into account the horrific impact of colonialism linked in part to ideas of the superiority of Christianity (as well as race).
But I this is really more an example of evidence that ideology of all sorts (inclduing communism, Bolshevism, religion, manifest destiny, racial supremacy, whatever) is dangerous. Secularism wasn’t the motivator for the Russian revolution or the Ukrainian famine; it was part of an ideological project. Ditto the Crusades, ditto the Rwandan genocide, and very, very much misery in human history.
We are story-telling creatures with a fundamental need for a narrative that gives our life meaning. This idea that something has no value because it lacks scientific 'proof' overlooks what it means to be human.
I don’t think anyone has come close to saying that. But that stories of gods have, or should have, inherent value above that we assign to other fiction to those who don’t agree that those gods exist is a much, much bigger claim.
As it happens, there is a great deal of literature, art, and music made in the name of religion, which I enjoy very much. Does it outweigh the negatives? Not for me, but that’s a personal call. I don’t think my personal pleasure and enjoyment is worth even one life. And I certainly don’t think that it is a decent argument for trying to impose the beliefs of a particular faith of people who don’t share it.