That's the power of only seeing one story, minus context of what the rest of the world was like. Would you also call the history of what native american tribes did to each other evil? Or was it on par with the brutality of the times?
You're misusing that fallacy here, but I don't fault you, because my point is subtle. My claim isn't that their point is invalid because they're hypocritical about native american history, my claim is that their gauge of evil is miscalibrated, because only a certain perspective of history is amplified to this degree, minus the historical context that puts it on par with the times.
