Can it not be both? Or all three groups?
The probable ugly truth is it’s migrants at the border, white poor/rural Trump supporters in the south, and inner city black people
The ugly truth is the ignorant trash fully-vaccinated are the real problem.
https://sharylattkisson.com/2021/07/read-cdc-74-who-got-covid-19-in-a-recent-analysis-had-been-fully-vaccinated/