Native American slavery has traditionally been treated by scholars as a secondary matter that is of historical interest because of its relationship to other more common forms of exploitation, or because it was a curious but minor variation on the more important enslavement of African peoples on colonial plantations.
frivolity - the trait of being frivolous; not serious or sensible. Synonyms: frivolousness. Antonyms: serious-mindedness, earnestness, seriousness, sincerity - the trait of being serious; a lack of solemnity is not necessarily a lack of seriousness- Robert Rice.
Robertson Davies: The people of the United States, perhaps more than any other nation in history, love to abase themselves and proclaim their unworthiness, and seem to find refreshment in doing so... That is a dark frivolity, but still frivolity.