Are you suggesting that people who were massacred and enslaved by a technologically more powerful race should just 'Stop whining and get over it'?.
in a sense Yes.
Of course some people wont ever forget being the victim and that is understandable but as a whole, progress has to be made looking forward especially by the younger generations and future gerrations,
Take Northern Ireland for example, an example i tend to use.
The brits took not only Irish peoples land, but systematically kept the people down, limited their chance to not only employment but education, and the brits subjected the Irish to rape, murder theft etc for centuries.
The troubles was a ticking time bomb, the Irish were treated like shit in their own homes, or at least the home that was robbed of them, but for peace to prevail and for the province to move on people had to change and learn to live and let live.
The next generation cannot keep thinking of themselves as victims.
In a war good people can do bad things there is good and bad in every race, culture etc...as the great Irish writer George Bernard shaw once wrote
"Progress is impossible without change, and those who cannot change their minds cannot change anything"