‘Black folks have always been huge culture drivers on social media platforms and other tech products. Systemically excluded from access to capital and distribution, Black folks leverage creativity to make social media platforms their “own” without ever having true ownership.’

I really don't get it. Who has been excluding ‘black folks’ from digital spaces. Does any of the other users of social media actually own the platform.

Not "digital spaces", but "capital and distribution".

It's basically saying that the black population does have an impact on culture although there are no black CEOs of social media companies, just in a vaguely victimist black pride sort of way.

There were a few dust-ups of this sort that I saw on Twitter back before Gamergate started (and during Gamergate) where there were accusations that people were brigading visible black users on Twitter to push them off the site or get them banned with report spam. I don't recall whether it ever got to the point that it was covered in the news - and I can't find any articles about it - but it wouldn't surprise me if things like that have continued to this day.

So at the very least, I recall hearing about it happening. It doesn't surprise me if people are claiming to have experienced it firsthand.

He means they don't own the social media companies, not that they're excluded from using them. But of course that's still silly because almost nobody of any race owns a social media company, at least not enough to have any control over it.

Have you looked at response-Tweets on X lately?