The Native American population for a starter. Highest rates of suicides. The live on reserves which are apartheid like in their structure. You have high rates of sexual assault against indigenous women. You have the history of the Boarding school project along with the residential schools in Canada which was a form of cultural genocide. You have the highest rates of police violence against indigenous people. So yes. Oppression is taking place in America. Nevermind what's happening to groups like the Black and Hispanic community.