Dee is following a doctrine of cultural nationalists who show African roots very strongly and profoundly.
Explanation:
When reading "everyday use", we can see that Dee is probably involved in cultural nationalist doctrines, which are known to be active in relation to the ancestral African roots in the current population. Dee's activist and very pertinent position dislikes her mother, as she lets Dee act disrespectfully with her family and even with her own culture, Dee's mother did not believe that anyone focused on respecting African culture would act mean and selfish.
