That applies more to so-called new atheists than to the old, existential ones. But even new atheists focus on literalism mainly for political or strategic reasons. They want to undermine religious fundamentalism because of the greater danger it poses to society. Fundamentalists are more committed to a naïve sense of biblical literalism and inerrancy than are atheists.

https://medium.com/@benjamincain8/scientism-and-the-downfall-of-new-atheism-919213775919?source=friends_link&sk=c498c50bbf9c48358087e8163fa6d27f

https://medium.com/interfaith-now/the-collapse-of-new-atheism-and-the-rise-of-godless-culture-f8a5a1e27efa?sk=59427ec6148ca793376c3301563b5ad0