Approach it intersectionally
Anti-Blackness isn't the fediverse's only problem. Misogyny, transphobia and other forms of anti-LGBTQIA2S+ bigotry , anti-Indigeneity, ableism, Islamophobia, antisemitism ... the list goes on. As well as being problems in their own right, all of these other dimensions of oppression compound the fediverse's anti-Blackness. And people at the intersections experience unique forms of oppression.
Misogynoir – a term originally coined by Dr. Moya Bailey in 2008, describes the ways anti-Black and misogynistic representation shape broader ideas about Black women and gender-expansive people (especially in social media) – is one important example of intersectional oppression. Calling all non-Black people: Interrupting Misogynoir, by Dr. Heliana Ramirez and Jaya Mallik, is an excellent very recent resource; there's also a PDF version available here.
Similarly, transmisogynoir describes the intersection between transphobia, misogyny, and anti-Black racism specifically; Ashlee Maree Preston's The Anatomy of Transmisogynoir is a good introduction.
Of course, all of these dimensions of impressions are also complex issues, and the of how things manifest details can be very different, but the basic framework in #1-#4 of listening more, being more thoughtful about posting, intervening when you see something, and supporting people is quite general. For example, sections #2 and #3 point to how to make progress on Mastodon's notorious reputation for "reply-guy-ism" – which, while bad in general, is a lot worse for Black women and other women and femmes of color.
So please pay attention to these dynamics as well, and make sure you're listening to and supporting Black women, trans and queer Black people, and disabled Black people as well as Black guys and cis, straight, abled Black people.
(7/N)