Steven Pinker and Jared Diamond successively advanced the thesis that modern society is more peaceful than traditional society. They employed extensive arguments from evolutionary biology and cognitive science to develop their theories, which have received criticism from sociologists and anthropologists alike. Some believe that employing evolutionary theory to explain human society is highly controversial. Nevertheless, “generalized Darwinism,” a framework characterized by three abstract principles variation, inheritance, and selection has been applied to other disciplines. Thus, on the basis of a framework of generalized Darwinism, this study illustrates how Pinker and Diamond construct theories of violence through evolutionary thinking and how they are criticized by sociologists and anthropologists. Additionally, in this paper, evolutionary thinking is highlighted as an inspiration for reconsidering violence, modernity, and their interrelation.