The Fediverse structure means vulnerable groups can own their own servers, it costs about $10 a month for a five person server or $100 for a 2000 person server, with all tech stuff done by the hosting company.
They can set their own rules, and block other servers they consider hostile or abusive. It's giving them the power instead of leaving it up to some billionaire to say stupid things like "cis gender is a slur".
Actual power here is with ordinary people.