The British historian Tom Holland often makes the point that many of the critics of Christianity throughout history–indeed many voices that would be labeled “secular” or “anti-Christian”–are actually dependent upon Christianity for many of their ideals and values. His 2019 book, Dominion: How the Christian Revolution Remade the World, makes this point at length.
Here’s a link to a new fascinating interview with Holland about how Christianity changed the meaning of suffering in the world.