As the lefties feel that Sunday has some sort of religious connotations for them: The Lord has a message for the lefties. "If only you would be altogether silent! For you, that would be wisdom." : Job 13:5.
The 'argument' appears to be that blacks don't feel comfortable visiting there. I wonder if they'll spin the colours and make it about various parts of London and other big Cities, and try to make the same claim of racism, and see how that plays out, never mind tourists in predominantly black countries.
Blacks are about 6% of UK 77% of English adverts & 60% of TV people.. Don't mention crime or fatherlessness