*There is a correlation between socioeconomic disadvantage and ethnicity&
There is also a correlation between economic disadvantage and geographical location, that has nothing to do with race.
I used to be a teacher, and I taught in a very high achieving grammar school, amongst others. Originally, a long time ago, at its inception, this school was a boys' school; and then about twenty or so years ago it started admitting girls.
It was, back in the day, a predominantly 'white' school - with maybe a few children of other ethnicities. These days it is about a 50/50 split between white pupils and pupils of other ethnicities. What is striking is the different ethnic make-up of the school. Large numbers of Chinese - Asian and Indian - Asian, as well as a growing number of pupils of Middle Eastern/Arabic origin, but relatively few black pupils. Of those, it is conspicuous how many are second generation of, say, Nigerian professional parents.
Different ethnic groups have their own issues, and bring with them their own specific cultural patterns. And ethnic groups each have their own class issues too. There is also social diversity within each ethnic grouping.