'Black and minority ethnic' - clearly, jews are an ethnic minority in Britain. The fact that most, though not all, are white is immaterial. Irish (which is also my heritage) can also be included in this. Talking about "the BAMES" is clearly disparaging, though I image this is where centrists end up with their obnoxious hierarchy of oppression.
"...a mural of a bunch of Jews around a monopoly board" - you can't even get that right. Of the six individuals around the board, two were jewish, four were not - Lord Rothschild, John D. Rockefeller, J. P. Morgan, Aleister Crowley, Andrew Carnegie and Paul Warburg. Of the two that were, the artist and his supporters argue that figures depict "the elite banker cartel" with deliberately exaggerated features.
Not to my taste admittedly, I think you're on dicey ground the minute you started depicting any jewish person with exaggerated features, even a banker. However, I'm sure that future historians will marvel at how a total obscure mural on a wall in east London, that vanished years before and no one had ever seen, ended up helping to cement the hard right into power in Britain for decades.