what theme does cooper explore through his characterization of natty bumpo?

The white man as hero in a native culture is a theme explred by many stories. Natty Bumppo is a protagonist that highlights this theme in The Deerslayer. Certainly the Christianization of Natives was considered a good thing by whites at this time. Natty Bumppo recognizes injustices done to natives and addresses these wrongdoings through Christianizing the natives.

What theme does Cooper explore through his characterization of Natty Bumppo?