Yesterday I went hiking with friends to a site used by early peoples in the Dragoon Mountains. The Mogollon people inhabited this area about 1,000 years ago and left pictographs (above and below), along with other artifacts. Although no one knows for certain, the Mogollon may have displaced the Desert Archaic peoples a few thousand years before.
The Mogollon were displaced, in turn, by various Chiricahuan Apache tribes. The Apache, particularly the bands headed by Cochise and Geronimo, were displaced by invaders of European ancestry (also known as Americans) in the late 1800s.
Genocide was common, just as it is today.
And so it goes. Cultures wax and wane. Peoples come and go. How could it be different for us?