@TNT261 You are speaking from a conqueror's perspective: "Like what the hell is wrong with that minority? So what if we took their lands, drove them to more remote regions? It's not like they were using the lands productively. If we forced them to accept our values and our way of living, learn our language and religion, it was for their own good! They should be thankful we brought them civilization and education and took upon ourselves to see that they can at least try to live like civilised people, not like the savages they were before we came here."
The grandpa just finds it hard to accept that his people have lost the silent and very one-sided war. He won't be able to forgive and give up till the day he dies, most probably. So, don't worry, his whole people already experienced those "consequences" you wished upon him. Just look at the soldiers the government sent to guard the place: They were good for nothing drunkards. The new commander was an inconvenient man who had to be dumped somewhere far from sight, definitely not the right man for the job.
The grandpa's only sin was making his grandchild suffer. Aina had already suffered enough.