I think there is an increasing misunderstanding about attempts to make sure a work force is more representative of the community it serves.
And lets not forget that women have benefited from this.
Its really stupid headlines from chronically ill informed statements like Trump (trying to imply a fatal air crash was because of what the US calls DEI).
And as others have said, given that in the UK we have a very diverse population in terms of beliefs, culture, etc., etc., the idea that white public school boys will give us the best service is ridiculous.
Because some employers may drift into positive discrimination, which isn't legal in the UK, doesn't mean that others shouldn't make an application process open and accessible so as to end up having a work force that is representative of the community.