I noticed YouGov data is wrong in at least 1 area, the percentage of Native Americans is much higher than 1%, they seem to have wrongly excluded a large % of th

I noticed YouGov data is wrong in at least 1 area, the percentage of Native Americans is much higher than 1%, they seem to have wrongly excluded a large % of the black population that is native to America but were part of a systematic paper genocide carried out by the US government. If there is one obvious mistake, I wonder what else they got wrong or used the wrong criteria for.