>Some were cruel to their captives and in times of war; others were not.
What bearing does this have on anything? Most of the bad things we hear about were learned from someone else (e.g. scalping from the French).
>Some wanted to expand their territory and conquer lands and other tribes,
There was in-fighting between certain groups, but obviously none had the same appetite we did.
>If you have any love at all for history, stop referring to all those pre-colonial nations under a single name and title.
You seem to have an axe to grind. In normal usage, one provides as much detail as is relevant. If I were talking about people of earth in relation to some other alien race I would most likely say "humans" unless there was a real reason to be more specific.