genocides are pure monsters like mao zedongo,adolf hitler,hideki tojo,joseph stalin,leonid brshner,kkk or pol pot they are all still humans which means they can still be killed by other people if given the right number of people who disapprove of what they do vs plagues like bubonic,pneumic or septcemic which is an unseen unknow killer. the bubonic plage killed 75 milion people