Words like Aboriginal Peoples, First Nations Peoples, Indian, Inuit, Métis and Native should be capitalized as they are proper names of nations of people.
Is natives a proper noun?
Proper nouns include the specific names of people, places, and things. Names of racial and ethnic groups are treated as proper nouns, which means they are capitalized (e.g., African American, Asian American, Black, European American, First Nations, Hispanic, Native American, Latinx, White).
Is it better to say indigenous or Native?
The consensus, however, is that whenever possible, Native people prefer to be called by their specific tribal name. In the United States, Native American has been widely used but is falling out of favor with some groups, and the terms American Indian or Indigenous American are preferred by many Native people.