Another theory is that, based on what I see on TV in DC and neighboring Prince Georges County, the percentage of people engaging in block parties and other social events involving hundreds of people in very close proximity leans very heavily toward “People of Color”.
Paraphrasing Carville,
“It’s the behavior, Stupid”
Anecdotal evidence is not trustworthy but...
I recently stopped by a Godfather’s Pizza in my predominately white/Hispanic area of Houston (wearing an N95 mask of course and planning to pop the pizza back in the oven when I got home). The pizza joint had a handful of closely spaced tables tables in the tiny restaurant. Every table was occupied by unmasked customer’s belonging to separate families. Every single eat-in customer was African American.
It seemed to me that in our area most whites believe the epidemic is dangerous and many blacks do not.