There is zero evidence that anything racist was said by Catherine or anyone else.
Meghan said during the Oprah interview (when it was just the two of them speaking) that they (H&M) were being told that Archie would not get a title, would not get security and that “in tandem” there were “conversations and concerns” about the colour of his skin. She did not characterise this as racist, but told Oprah that’s what she could infer from it. This is the statement the press ran with as evidence of racism (and for which H&M later picked up a Ripple of Hope award from the Robert F Kennedy Foundation).
We know Meghan lied about the title and security parts of that statement. Archie had titles at birth. He was not entitled to be a prince because of the letters patent and his not being the grandson of the reigning monarch. So the “racism” claim was tacked into a lie.
When Harry entered the interview with Oprah, not only did he come across as completely blindsided by her asking him about the conversations about Archie’s skin colour, he also made it clear it’s not something he wanted to talk about, and that it was a conversation - singular - that occurred when he and Meghan were not even married, and she was not present. No further detail of the content of that conversation was ever provided. Not in the Netflix doc. Not in Spare. This apparently hugely consequential conversation was not so much as mentioned in either of H&M’s most important projects leaking details about the RF.
They nevertheless allowed the press to run with the racism narrative (and collect their award), but did take the opportunity to brief Gail King (Oprah’s bestie) that neither the Wueen or Prince Philip were involved. Harry did not take the opportunity to further clarify the conversation until Harry’s press tour for Spare and interview with Tom Bradby, where he said there was no racism, just unconscious bias, and the racism charge was all the going of the press. Again, no further details were given by Harry of the exact content of that conversation, and to this day we do not know what it was about.
Harry as a reliable witness on other people’s “unconscious bias”. I don’t think so. In his Spare interview with Stephen Colbert, he spoke of his fear that Meghan’s genes (presumably her African American ones from her mother, rather than her blond/blue eyed European ones from her father) would out muscle his ginger genes (his use of the word ginger) and expressed his relief that didn’t happen. How about Meghan? In the Netflix doc, we have her and Harry talking about their children’s looks. Archie is described as looking like Meghan (and presumably Doria) in the most dismissive of statements. Whereas Meghan waxes lyrical about Lily’s “blue, blue, blue” eyes like Diana’s. Now, if you were from Meghan’s African American family, how would that make you feel?
So where does Catherine come in? Omid Scobie’s Dutch publication of Endgame, a “mistake” that could only have come from him but which he repeatedly denied until it became ridiculous to do so. And what is that content? Leaked paraphrasing of a letter sent from Meghan to Charles, the content of which can only have come from one source into Scobie’s hands, Meghan. And who does it refer to? The “Princess of Wales”. Who at the time of the alleged conversation occurring all that time ago before H&M’s wedding was Camilla, albeit a title not used by her. Catherine was not the POW at that time and was never named in Endgame as being the person in question.
Whatever dot joining exercise has been done leaves no discernible picture of anything bearing semblance to a credible accusation. All the dots are concentrated messily around Meghan and the narrative she wanted the world to believe. And frankly, she does not have a track record for truth, any more than Scobie.