The summary that Eloethan requested. It,s rather long but I wanted to be thorough.
I shall refer to the writer as P.
The sub-title of the article says that "blaming Meghan's flight on prejudice is absurd and simplistic in a nation that stands out for its tolerance and diversity", so that is the basis of her thesis in the article. Her premises are that the UK is a tolerant nation when compared to others and that our current online conversations about racism (e.g. on Twitter, I suppose) is terrible and neurotic. P thinks in 50 years' time this will be obvious.
Then P describes what happened between Rachel Boyle and Laurence Fox, quoting what each of them said. With regard to Fox saying "we're the most tolerant lovely country in Europe", P says apparently Finland is but we come second.
P says Fox deplored 'real' racism on QT and said that anxiety about it means "things like the Manchester grooming scandal get ignored". [I understand that this means police didn't deal properly with the abuse white girls were getting because they didn't want to cause "community tensions". This has been acknowledged elsewhere].
The article then says Fox was being a prat mocking woke culture but the Twitter pile-on culminating in him being called a disgrace and calls were made for his work to dry up was over the top.
P calls this nonsense that needs unpicking, that our dialogue about racism has become absurd and counterproductive (see the paragraph above) — a bigotry about bigotry. P says two 'racist' examples are cited among the coverage on Meghan which was mainly "fawning and fascinated" or "routinely snarky". [I think Kate Middleton had to put up with similar amounts of snark].
The two 'racist' examples most cited are: (1) a reference to M's mother's slave ancestry, yet M "proudly mentioned her mother's freed great-great grandfather". P mentions also at this point Michelle Obama's description of her black daughters playing on the lawn of the White House built by slaves.
(2) Rachel Johnson's piece (P calls it a "moderate-to-bitchy" piece) mentioning "exotic DNA". P says this was actually RJ's only positive point: strong new blood for an inbred royal family. [In biology this is referred to as "hybrid vigour", i.e. something good].
Moving on, I quote P's words: "That the newest duchess is of mixed race is merely interesting, like Diana's Elizabethan Spencer ancestry. If you assume that mentioning it is an insult you admit your own covert assumption that non-Caucasian blood is somehow shameful, and that really is racist".
P then talks about some more about the sickness in perception and determination to be offended that are causing serious problems in our society and says we should be ashamed that conversations about racism have become "more quarrelsome and emptier even while legal protections have increased.
P admits we are not perfect and refers to the identical CV study that Eloethan mentioned above. She talks of young black men in prison in too high a proportion and of deaths in childbirth disproportionately affecting black women.
Final paragraph talks of "self-promoting activists [endlessly] repeating that Britain is racist. That anyone with white skin carries, in the US metaphor, 'a knapsack of invisible privilege' and despises you" and how this is not helpful to black people. P admits we have bigots, vandalisers of mosques and temples, "national embarassing uncle in Piers Morgan" but that "murderers and burglars do not make us a criminal nation, nor do thugs and rude boys."
She says "most people are disgusted by racism" and "millions adore Stormzy, Sheku, Lenny Henry, Mo Farah, jazz, grime, rap."
There is work still to be done legally and culturally but we are not smug, P says, and "self-flagellating doesn't help".