Do you want to be responsible for future crimes against humanity, such as slavery or genocide?
If the answer is yes, then hold up as Heroes those who have gotten us where we are today and ignore any and all attrocities they committed to achieve their goals.
If the answer is no, then we must expose and condemn those evils and endeavor to achieve societal, industrial and economic progress without repeating said catastrophic actions.
The history of almost every nation in the world is filled with genocide, slavery and conquest. Because those are the easiest ways to achieve wealth and power for a small majority.
We can and must do better than that.
In other words. The easiest way to lost 30–40 lbs is to cut off a leg, but that’s obviously not a healthy or sane way of losing weight. That’s what our Founding Fathers did though and to ignore that or ever worse, see it as a requirement for success, is dangerous to say the least.