Firstly please don't tell me that it shouldn't.

With colonized/formerly colonized countries like Palestine, South Africa, Algeria etc it seems pretty straightforward, since indigenous peoples are still large majorities of the population, but much different in America, since the eradication of indigenous people and their societies and cultures has been happening for centuries and now indigenous people only make up 1.3% of the population. Not to mention that the american population is made up of immigrants from around the world besides the descendants of settlers.