I'd like to break this down a bit because I often see the old fib, that Meghan was a victim of media 'racism' played out still. It really should have been debunked after Netflix was unable to find any UK racist headlines for the H&M docu, but since some people still believe it, let's look at the claim in more detail.
The early coverage of Meghan was pretty much hagiographic, with the tabloids obediently reproducing the Palace PR lines about her being a successful actress and feminist activist (spoiler alert: she wasn't) until....she and Harry took a flight on Elton John's private jet a couple of days after a big speech on climate change and how the onus was on ordinary people to reduce their carbon output. The tabloids called out and mocked this hypocrisy, as they should - their important social function being as I pointed out above, to puncture the hypocrisies of the rich and powerful.
But what really made the media take agin Meghan was the ridiculous and unprecedented release Harry insisted on putting out (against the very wise counsel of Palace PR) accusing the media of being racist against Meghan.
Why did Meghan believe the media had been racist? Because of a headline in the Mail which described her as being 'Practically Straight Outta Compton'.
Some context is needed here. Compton, a predominantly Black area with severe socio-economic problems of longstanding, is near to the more middle class area where Meghan grew up. The headline was timely, because the film Straight Outta Compton was just at that time premiering in UK movie theatres. The film is a biopic of the late 1980s rap group, NWA.
It's difficult for me as a hip hop fan to explain to muggles just how seminal NWA were. Featuring the storied and deeply gifted Ice Cube and Dr Dre, they used their music to tell unvarnished stories of the chaos in Compton, caused by crack and the institutionally violent and racist police response. Songs such as Fuck Tha Police detail police brutality mercilessly, with a beat you can dance to. Their debut album, Straight Outta Compton, is still fresh, urgent and relevant today (it was and is played frequently at US BLM marches). I would urge anyone interested in the 1980s urban working class Black experience to give it a listen.
Dr Dre invented an entirely new form of hip hop called 'g-funk' which was then taken up and used by his proteges 2pac, Snoop Dogg, Eminem and Kendrick Lamar. It's no exaggeration to say that without Dre, hip hop would not be what it is today. Meanwhile Ice Cube went on to release many politically active albums and became a social activist.
I would be most interested to know WHY H&M felt that the Compton headline was so offensive to them? The young men of NWA grew up in grinding poverty; they lost loved ones to crack, AIDs, gang violence and police brutality, and they took that pain and turned it into great art. Dr Dre, Ice Cube and Eazy-E achieved far, far more than Meghan or Harry ever have, or ever will. Meghan should, in my view, be proud to attract such a comparison, which she does not deserve. So why the fury? Do she and Harry dislike any suggested link between themselves and working class Black musical artists? If so, why?
That's before we get on to your characterisation of the media coverage of Meghan as 'unfair'. Newspapers have never ever had a remit of 'fairness'. The BBC has a remit of 'balance'. But no media outlet has a remit of 'fairness', because fairness is deeply subjective.
TLDR: the UK media weren't racist towards Meghan. They mocked and punctured her and Harry's hypocrisies, as the US press is now doing, a good deal more viciously. H&M can't handle it, because they believe they only warrant positive coverage. Well...they don't.