Earlier quoted context omitted.
High/low trust at root refers to how you behave to other members of your nation, not foreign peoples. Every nation ever has always tried win zero-sum interactions with other nations (e.g. who gets the land, resources), and all existing nations today continue to do so. Native American societies may have been high trust internally (within the tribe, clan, nation boundary) but certainly screwed over other Native America…
Point taken, but consider the context of where we are in this thread: discussing immigrants and foreign contract workers cheating in interviews and on their resumes for positions within the United States. Perhaps your point is more applicable to how the idea of high or low trust cannot apply to workers operating in a culture foreign to their own. The example of inter tribal slavery doesn't actually apply to what I'm…
My point is that in-group relations is not the same as out-group relations. High trust is about how you treat members of your in-group. Enslaving foreign people is most certainly a "low trust" move (how can I possibly enter an agreement with you when I know you might just show up one day and enslave me?) but it's fully possible and consistent for the perpetrator to belong to a high trust society.