I found a Facebook post by a black Minneapolis resident, Emily Osoto, who gives a very personal account of how microaggressions for race feel in a city thought (before the Floyd incident) to be nice, but deceptive.
The Startribune has an article about microaggressions and doctors and health care workers of color, by Emma Goldberg.
On another matter, Charlotte Alter has a long essay in the current issue of Time, “Inside the Democrats’ Plan to Win Back the Internet”. She describes the Internet as a battleground state, and as a tool for recruitment, not discussion. She never gets around to admitting Biden’s desire to gut Section 230.