The Christian belief in the fundamental unity of the human race clashed with fashionable theories of polygenesis and African inferiority, promoted by infidel philosophers. As Davis explains, ‘early antislavery writers like James Ramsay and Granville Sharp repeatedly identified the theory of racial inferiority with Hume, Voltaire, and materialistic philosophy in general; they explicitly presented their attacks on slavery as a vindication of Christianity, moral accountability, and the unity of mankind’. Hannah More deplored the new philosophical racism:
The final chapter describes the ultimate consequences of this debunking: a distant future in which the values and morals of the majority are controlled by a small group who rule by a "perfect" understanding of psychology, and who in turn, being able to "see through" any system of morality that might induce them to act in a certain way, are ruled only by their own unreflected whims. In surrendering rational reflection on their own motivations, the controllers will no longer be recognizably human, the controlled will be robot-like, and the Abolition of Man will have been completed.
=DPSP Art. 48 fullfilled (modern and scientific agriculture and animal husbandry) #2: Emancipation