The Aborigines.
As I was watching this I was well aware of the parallels with the Indians of North and South America and the destruction of their heritage by white European settlers. However, Australia is HUGE and there are large parts of the country that aren't inhabited today, right? These people were primitive hunter/gatherers that wouldn't have been any competition for colonization for the whites in that region. So why all the hatred? Why do they want to eliminate them all? Is it an example of "manifest destiny" as seen in U.S. history or just racist arrogance that one is superior over the other? Also why did he need to hire a sharp shooter to start with? These guys were defending themselves with spears for gods sake... You're telling me that his men couldn't eliminate them from a distance with their own rifles and pistols? A standard Henry or Winchester could kill from about 300 to 400 feet! That's like a 3 to 1 advantage over the Aborigines. I just don't see why they would need a mercenary sharp shooter from America to come all the way to Australia for that reason.
R E S I S T A N C E IS F U T I L E !