It's not at all, though she seems to think it is. It's about how indignant she is that she got two college degrees and still can't get a middle class job.

The headline is: "Two College Degrees Later, I Was Still Picking Kale For Rich People."

That happened because she studied creative writing, a largely non-marketable subject. Her being black is not relevant. If she had studied chemical engineering or dentistry or any of a large number of other in-demand subjects instead of creative writing, she'd easily have obtained a middle class job despite being black.