from the Greek ὁλόκαυστος holókaustos: hólos, "whole" and kaustós, "burnt"
Straight from the first sentence of wikipedia:Quotefrom the Greek ὁλόκαυστος holókaustos: hólos, "whole" and kaustós, "burnt"It guess it just applied more because, well, the cremation chambers and whatnot. (I'm not sure if the Native Americans or any other genocide relied so much on fire, so this suggestion could be void.)
Imperialism happens get over it and let's face it, imperialism in this case was for the better.