Some of us have more limits on our understanding than others. Mr/Ms Colburn appears to have lot to learn about this topic of master narratives and counter narratives, but his/her overall point is well taken.

White American narratives of  contact and colonization are consistent and distinctive in that they conceive of the New World as "terra nullius" or empty land--the term "virgin land" turns up a lot--despite how First Nations had been living on it and "developing" it for at least as long as actual European nations had existed. Even the term "New World" assumes terra nullius since it was hardly "new" to the First Nations who lived there.

Terra nullius doctrine underpinned Manifest Destiny, and other attempts to simply make the First Nations disappear from our national history. The counternarratives that Mr/Ms Colburn will teach our children simply restore the presence of the First Nations, among other subjects, to the story of the land that Columbus invaded in 1492.