Does political realism have anything to contribute to the debates about migration in normative political theory? Anything well-established ‘moralist’ theories do not already acknowledge, that is? Addressing Jaggar’s (Aristotelian Soc Suppl Vol. XCIV, pp. 87–113, 2020) and Finlayson’s (Aristotelian Soc Suppl Vol. XCIV, pp. 115–139, 2020) critical intercessions into contemporary discourse about migration I argue that a political realist approach to the theory of migration faces what I call the ‘surplus challenge’: realists supposedly have no normative surplus over (liberal) cosmopolitan and nationalist moralist approaches. This nothing-more-to-add narrative is a common argument against the possibility and integrity of political realism (as seen in, inter alia, Leader-Maynard and Worsnip in Ethics 128(4), pp. 756–787, 2018). I show how it misconstrues the realist agenda. Finlayson, on the other hand, paints the realist intervention as primarily about paying closer attention to colonialism’s long legacy. A properly radical intrusion, however, addresses the unchecked and unwarranted, overbearing normative power of moral principles. I will conclude that for the realist, shaking up the discipline will not come as easy as pointing at some overly historicised facts. However, and despite this, the realist intervention rightly problematises contemporary philosophy of migration for its moral normativism. A radical realist approach to issues of migration, which unmasks the unjustified ‘microphysics’ political power hiding behind normative veneers, is a properly cataclysmic intrusion and the right way forward.

Do salient normative claims about politics require moral premises? Political moralists think they do, political realists think they do not. We defend the viability of realism in a two-pronged way. First, we show that a number of recent attacks on realism as well as realist responses to those attacks unduly conflate distinctly political normativity and non-moral political normativity. Second, we argue that Alex Worsnip and Jonathan Leader-Maynard’s recent attack on realist arguments for a distinctly political normativity depends on assuming moralism as the default view, which places an excessive burden on the viability of realism, and so begs the question. Our discussion, though, does not address the relative merits of realism and moralism, so its upshot is relatively ecumenical: moralism need not be the view that all apt normative political judgements are moral judgements, and realism need not be the view that no apt normative political judgements are moral judgements.

The political psychologists Hatemi, Crabtree and Smith accuse orthodox moral foundations theory of predicting what is already intrinsic to the theory, namely that moral beliefs influence political decision-making. The authors argue that, first, political psychology must start from a position which treats political and moral beliefs as equals so as to avoid self-justificatory theorising, and second, that such an analysis provides stronger evidence for political attitudes predicting moral attitudes than vice versa. I take this empirical result as a starting point to intervene in a debate in contemporary normative political theory which has, to my mind, become largely unwieldy: the political realism controversy. I advise the realists to ‘downplay’ the (thus far) inconclusive debate over realism’s metanormative standing in favour of a non-metanormative inquiry. Hatemi, Crabtree and Smith’s study makes for an excellent backdrop. It affirms the realist hypothesis that politics is in some relevant sense – a causal, psychological sense – prior to morality.