I think Just Sam is right on all accounts. To add, H. Balthasar… has so entrapped themselves in the identity of “whiteness,” that he feels an absolute need to defend the entire “white race” even when it’s not the race, but one or a few people who identify themselves as white that is the subject of the discussion. If he takes himself out of that category, and just be human, he may not feel so angry because he would understand it’s not directed at him. He could still be “good” even though someone else is a poor performer.

Ultimately, it IS a race issue. A woman who believes in her whiteness is aiming to do aid-type work in a continent ravaged by colonialism for hundreds of years, by betraying a daughter of that very continent! The irony is obvious. The result of taking resources from Africa and affecting the job of the author comes from the same ill-fated belief in whiteness, that engine that powers colonialism. Our author’s job status and financial position and thus that of her family are in jeopardy because of this woman’s actions. That’s the bottom line. She and her family needs to eat from her labor! Her trusting this woman may take that away, that’s the crux of this story.
H. Balthasar…, try this. Be an American of German, French, British, or wherever your ancestors are from, just NOT “white”, as you know that is a concept created just 400 years ago to help bolster and justify colonialism. You may see things much clearer, be less angry and feel less accused. You have no need to feel attacked if you shun whiteness.