Well, to be fair, the BRF (and my country as well) was in part founded on racism. Not many say the N-word, but they do accept racist tropes.
Meghan was portrayed as coming from a poverty-stricken background. She was portrayed as an Angry Black Woman. These tropes were portrayed by the media for financial gain.
WRT to the Oprah interview, recall that Meghan was never a part of the conversations (at least it doesn't appear to be the case). She did wonder why these discussion about skin color, the titles Archie would have, and security, were happening.
Here's an excerpt of the conversation with Oprah:
Meghan: That was relayed to me from Harry. Those were conversations that family had with him. And I think . . .
Oprah: Whoa.
Meghan: It was really hard to be able to see those as compartmentalised conversations.
Oprah: Because they were concerned that if he were too brown, that that would be a problem? Are you saying that?
Meghan: I wasn’t able to follow up with why, but that — if that’s the assumption you’re making, I think that feels like a pretty safe one, which was really hard to understand, right? Especially when — look, I — the Commonwealth is a huge part of the monarchy, and I lived in Canada, which is a Commonwealth country, for seven years. But it wasn’t until Harry and I were together that we started to travel through the Commonwealth, I would say 60 per cent, 70 per cent of which is people of colour, right?
And here she discussed Archie possibly not getting the same title as the grandchild of the monarch:
Meghan: But the idea of our son not being safe, and also the idea of the first member of colour in this family not being titled in the same way that other grandchildren would be . . . You know, the other piece of that conversation is, there’s a convention — I forget if it was George V or George VI convention — that when you’re the grandchild of the monarch, so when Harry’s dad becomes king, automatically Archie and our next baby would become prince or princess, or whatever they were going to be.
Oprah: So, for you, it’s about protection and safety, not so much as what the . . . what the title means to the world.
Meghan: That’s a huge piece of it, but, I mean, but . . .
Oprah: . . . and that having the title gives you the safety and protection?
Meghan: Yeah, but also it’s not their right to take it away.
Oprah: Yeah.
Meghan: Right? And so, I think even with that convention I’m talking about, while I was pregnant, they said they want to change the convention for Archie.
Oprah: Mmm.
Meghan: Well, why?
Oprah: Did you get an answer?
Meghan: No.
Oprah: You still don’t have an answer?
Meghan: No.
I think the tabloid frenzy eventually spilled over to the more traditional media.
The other part of this is the "hate" social media accounts. One of the saddest parts of the docuseries was when Bot Sentinel traced the origins of the Twitter hate accounts and found several associated with Meghan's half sister. And Queen Camilla's official biographer is one of the main Twits re-tweeting the worst hate accounts.