There would be no data to back it up. At the chapter's end Dawkins returns to his initial topic. Even Dawkins admits that this is not a recipe for happiness. The problem of evil returns. Dawkins's simple answer is that there is no problem of evil.
Nature just is.
If the universe were just electrons, there would be no problem of evil or suffering. Dawkins retorts that meaningless tragedies like this are just what we expect from a universe of just electrons and selfish genes. However, it is also what we expect in a fallen world. Evolutionary writers never recognize this clear biblical theme. This is not the way God intended His world to be.