Diogenes the Cynic
Player Valuation: £40m
But do you still stand by....
"It would now be a rare thing indeed for there to be a group of people on television these days and all of them to be white"
I think the figures of National demographics are not wholly useful. There are more shows set in London for instance than many other places and though I don't have the figures I'd imagine the cultural and racial demographics in any major capital, certainly western, are notably different from those of the nation as a whole.
So any show or story set there would, or should, if done with that in mind reflect that. The national demographics have nothing to do with it as storytelling isn't evenly spread all over the nation.
You seem to be hanging everything on the word rare. I'll change it to rarer and move on.
The BBC is not meant to be reflective of London, it is meant to be reflective of the British population. And again, even if you wish to take London, East Asian people are not adequately reflected in this which suggests it is more based upon being seen to be representative rather than being based in actuality.