If you’re on the verge of having high blood pressure, wouldn’t you want a health care professional to tell you so that you can live longer and be healthier? When you are almost obese (the term my doctor gave me a few years ago), wouldn’t you want to know about it so that you can make diet and lifestyle changes to live longer? It’s the same with racism and microaggressions.
I never really thought about it like this. The problem is that the doctor and health care professional should give a damn every time, primarily because they’re paid to. They get money every single time you get sick. Healthy people don’t pay any of their bills, so the more they can profit, the better. With your example, there’d have to be some kind of way to be paid for calling out racism. As long as there isn’t, this analogy won’t work. There’s no return on investment.