I'll watch the videos later, one of the implications of decentralised social networks for science will hopefully be that it opens up sharing of research to a wider group of people, esp marginalised groups.
There have been a number of posts here about for example the disproportionate of black scientists getting funding, or papers published, so we know there is a issue.
To me, the ethnicity of a paper author is not really relevant, I can read papers or articles (or at least try to) I am interested in the content, so how much science is being lost due to predudice in the process.
I am not part of this process, I just try and read interesting science papers or articles that cover subjects I am interested in, even if I only pick out small parts I actually fully understand.