The first nuance is that people rarely exploited “natives” simply because they felt their race or culture was superior. Those are the excuses people made to justify, greed, corruption, and inadequate economic systems that were strained by war, famine, and policy.

Your points are reductionist and incredibly simplistic and I fear your version of a history book would only be about 3 pages long.

Yes, but the motivations for imperialism were different from country to country and the nuances are important. Slapping the broad label of “imperialism” on everything and then moving on is the reason we still haven’t learned our lesson.