What does Jesmyn Ward list among the issues with which black people in America are exhausted?

Jesmyn Ward writes that black people in America are tired of having to explain to their children why they are seen as less than by most of America and that they are tired of having to teach their children how to behave around police to avoid being killed. Lastly, she says that black people in America are tired of feeling futile in the face of a country whose whole history has been built on the subjugation of their people.