In what way does trueblood embody the black male stereotype prevalent during the early to mid-20th century?

Trueblood is charged with getting both his wife and daughter pregnant. The black community is horrified while the white community supports him, expecting such behaviour from a black man. His very name is suggestive, as he is true to his blood, his nature. This manner thus guilts the white community into paying off the state they have created whereas it shames the black community who does not want to recognize any who could work against their success. The narrator looks away in shame at Trueblood's audacity during the storytelling.