The author's thesis has a lot of truth to it. It would be interesting to run the State stats on years of Democrat rule vs measures of health and prosperity. I don't think it would take a rocket statistician to find that Democrat rule means huge societal problems, underachievement, a large underclass, and poverty.
| State | White | Black | Native |
|---|---|---|---|
| Alaska | 65% | 3% | 14% |
| New Mexico | 75% | 2% | 10% |
| South Dakota | 84% | 2% | 9% |
| Oklahoma | 72% | 7% | 8% |
| Montana | 89% | 0% | 6% |
| North Dakota | 87% | 3% | 5% |
| Arizona | 77% | 4% | 4% |
| Wyoming | 91% | 1% | 2% |
| Idaho | 90% | 1% | 1% |
| Washington | 76% | 4% | 1% |
| Nevada | 66% | 9% | 1% |
| North Carolina | 69% | 21% | 1% |
| Oregon | 84% | 2% | 1% |
| Minnesota | 83% | 6% | 1% |
| Utah | 86% | 1% | 1% |
| Colorado | 84% | 4% | 1% |
| Nebraska | 87% | 5% | 1% |
| Wisconsin | 86% | 6% | 1% |
| Kansas | 85% | 6% | 1% |
| California | 60% | 6% | 1% |
| Arkansas | 77% | 15% | 1% |
| Maine | 94% | 1% | 1% |
| Louisiana | 62% | 32% | 1% |
| Alabama | 68% | 27% | 1% |
| Michigan | 79% | 14% | 1% |
| Rhode Island | 81% | 7% | 1% |
One big difference in New Mexico is that you also have a lot of peasants of Mexican extraction (both legal and illegal) in the population mix.
New Mexico is not 75% white.....probably less than 50%
From your chart:
White - 75%
From the Census Bureau (2019):
Hispanic - 49%
Non-Hispanic White - 37%
Native American - 11%
https://www.census.gov/quickfacts/fact/table/NM,US/PST045218