BBC is pretty far left. I’d think they’d be in favor of Black Supremacism.
The establishment left in Britain is sensitive to charges of Antisemitism at the moment due to the scandals of the dearly departed Labour leader Corbyn.
This might figure into the mix, from 3 days ago...
https://www.express.co.uk/news/uk/1302315/bbc-licence-fee-row-leaflets-Andrew-Bridgen-latest-news