Thank you for sharing this. I can't speak for other PoC, but I will say I've gotten a lot out of this, and that I'm really, really glad so many people have responded to "shut up" with "hell, no".

I also appreciated your story about your talk about apartheid, and this:

I don't mean to say that it was worth it – that any people, ever, should have to suffer through something like that for the greater good. But you can't change the past, and you can learn from it.

Because yeah, I definitely feel like that about a lot of things -- if we could have a world where they could not have happened, that would be great, but at the same time, there's a reason so much SF has the time travel paradox conundrum: it is always necessary to live through our past to get to the present and the future. And if we can't skip it and can't make it unnecessary, I'd much rather learn from it than wish it would go away or avoid thinking about it. (A lesson I think some people on the other side of this great morass of fail have yet to learn.)