If a wholocide is completed, it would have been as if it never happened, there will be no one claiming that national, ethnic, racial, or religious affiliation, those who did are dead. There will be no mentioned of them, in history books, or museums, or media. Archaeologists would name their remains as something else. And no one will even utter their name again. At best in the far future it’s memory will remain as some myth or urban legend.