It only took Germans a century to acknowledge what they did in Namibia. Belgium has kinda-acknowledged what they did in Congo but not fully. Neither have made the sort of restitution that would indicate genuine remorse. Britain has not begun to discuss what they did in Kenya; there were rumours years ago of British security agents planning a coup on the off-chance that a government was elected which did begin to discuss it.
Honestly, genocide does feel like a fairly core European value.