Many claim that last stage of genocide is "denial"
But i think last stage of genocide is "normalization" - genociders convincing peopke that what happened was just a fate or inevitable or even normal.
Look at USA. Mfs dont deny their ancestors genocided natives, they claim it was "normal flow of history" and "it just happened"
It is basicaly taunting those that survived - "look, we are so powerful we can admit our evilness without consenquences"