Australian political ethologist Frank Salter, author of On Genetic Interests: Family, Ethnicity, and Humanity in an Age of Mass Migration, has argued that multiculturalism forms "part of an ideological-administrative system that is helping swamp the Australian nation through ethnically diverse immigration."
In contrast to the multicultural doctrine which promotes ethnic diversity, Salter has expounded the case for limiting diversity within the nation-state, asserting that "multi-ethnic societies are often confronted with the problem of discrimination and group conflict." .