Proponents of the notion that European populations are falling in to decline because of the increased birth rate among the ‘wrong type’ of people are gaining influence. There is a close link to be observed between these types of arguments and those of populist writers such as Christopher Caldwell who, in Reflections on the Revolution in Europe, links culturalist arguments about the danger posed by Islam to Europe to demographic ideas, seemingly inspired by Gobineau, about the ‘bastardization’ of the European race. More on my approach to the return of biological racism can be found in Chapter 4 of Racism.