Structural racism fails once again
We could understand this if you wrote it in English, instead of "intellectual I-am-smart speak".
I can see two possible special cases that might be worth looking at: when admixture is in the range of 50-60 percent white there’s a possibility that one parent is white and that parent is the breadwinner and may have a greater educational attainment than the black parent; and when admixture is zero, i.e. 100 percent African ancestry, both parents may be recent self-selected immigrants with higher than average income and educational attainment. It be interesting to see what happens to the analysis when these two cases are removed from consideration.
I don't get the comparison. Aren't social race and genetic race in a given individual almost always identical?
Could it be as simple as black parents don't know that they have to teach their children to read, or that they don't know the secret of "Cat In The Hat" and "Green Eggs and Ham" teaching your kids the 200 words you need to learn to read, to learn to read?