The lack of a critical mass on Black people on the fediverse is related to other problems: there aren't a lot of people who work in trades, people who are poor, people who aren't university educated etc. What we have is a college town. And like many college towns it very tolerant and nice ... but there are also huge blind spots, and gaps.
And this isn't something that can be fixed by being "nice" or "mindful" or whatever. 2/