In A Realist Metaphysics of Race: A Context-Sensitive, Short-Term Retentionist, Long-Term Revisionist Approach, Jeremy Pierce defends a social kind view of racial categories. On this view, the biological features we use to classify people racially do not make races natural kinds. Rather, races exist because of contingent social practices, single out certain groups of people as races, give them social importance, and allow us to name them as races. Pierce also identifies several kinds of context-sensitivity as central to how racial categorization works and argues that we need racial categories to identify problems in how our racial constructions are formed, including the harmful effects of racial constructions. Hence, rather than seeking to eliminate such categories, Pierce argues that we should also make efforts to change the conditions that generate their problematic elements, with an eye toward retaining only the unproblematic aspects.
Official book description:
In A Realist Metaphysics of Race, Jeremy Pierce clearly lays out the terrain of the leading theories about what races are (that is, if they 'are' at all) and gives a compelling argument that they are social constructions. Races, in his view, are real; they are not natural kinds, but social kinds--and social kinds with important context sensitivities. While primarily a work in 'applied metaphysics', Pierce's treatment ranges broadly--and competently--across a wide range of philosophical sub-disciplines: philosophy of science, philosophy of language, experimental philosophy, contextualism. The result is a nuanced and informative coverage of important issues that philosophers--and the discipline of philosophy--cannot afford to ignore.
(Kevin Timpe, Northwest Nazarene University)
Last I heard, the release date is Dec 15, 2014, just over a month from now. The publisher's website isn't listing a precise date, but I haven't heard them say otherwise since they gave that to me as their tentative release date.