We went through this before. The map you are showing is only reservation land. That is land that is sovereign Indian land. Indians are not restricted to those areas at all. They can and do buy land elsewhere. They are a small percentage of the population, so they don't own most of the country, no. But they do collectively own more than their fair share of property. They are poorer than average for the same main reason Russians are poor - too much alcohol.
Further, the US is more diverse than the Daily Mail is making out. The map is apparently grouping all Europeans into one category in the US - whereas the US actually has people from every single European country. By ethnic heritage, the number 1 ethnicity (barely) is German, at 17%. All others are smaller than that, and there are a lot of them.
Get a new topic, you are both wrong and you've worn this one out.