Genocides are each unique and not uniquely modern. [contrarian]
There are many well-known arguments for why the Holocaust perpetrated by the Nazis was different. It was higher tech. Death came faster. It was industrial in its scale. All true. But it's also true that every holocaust is different. Every genocide has its own particular characteristics, and every hated group is hated in its own special way. By sheer numbers of dead, the genocide of Indigenous peoples in the Americas surpasses all others. In terms of modern technologies, the transatlantic trade in kidnapped and enslaved Africans, and the plantations the trade served in the antebellum South and the Caribbean, were highly modern for their times. So cutting-edge, scholars have shown, that the systems developed to transport, insure, depreciate, track, control, and extract maximum wealth from this coerced labor shaped many aspects of modern accounting and human resources management.
XREF: Challenges the common framing that the Holocaust was uniquely modern or industrial; the author instead argues every genocide has distinct features while slavery's systems were equally modern.
Naomi Klein, Doppelganger, loc. 892