The US wanted to force the Navajos and other Native American tribes to assimilate into American culture, so they tried to destroy their culture by making them not speak their language (until WWII, where they became the renowned Navajo Code Talkers)
Explanation:
It was technically genocide, since the US wanted to get rid of all Native American culture.
It is important to always have the politics because they help keep our community in tack and then it keeps us safe most of the time when we have no one else to depend on they also keep us together as a community and that be something worth it.