Bessie feels rage at the passing of Jim Crow. Now she has to deal with both the run-of-the-mill ignorant racists and the condescending white people who think that black people "were all stupid" (4.12.8).
Even at a young age, Bessie realizes that her darker shade makes her more of a target of racism than her light-skinned family members. This dynamic exists within the black community as well, although her parents forbid any of that in their home.
Although the sisters are often offered housekeeping jobs, they manage to go through life without ever working "for white people" in their "entire lives" (4.12.11). Epic win.
Then the lynchings start. Now black people can be rounded up and killed for looking at someone the wrong way. At the worst time, entire families are killed.