Invisibilisation is one dimension of genocide. If Indigenous people are not "Counted" AS Indigenous, how will the U.S. and other governments even pretend to care about Indigenous people of the Americas? You first have to be regarded as existing in your own right, not under the label a government wants to give you to make you disappear even more.
I think this is a VERY serious issue for the coming white Christian Calendar year (ECD). This is a time when Indigenous people in the Americas need to be recognised, respected, and counted as human beings--Indigenous ones!