It could be said that the 'zwarte Piet' tradition in the Netherlands is a cultural phenomenon. The 'black Petes' are Sinterkalss' helpers, the tradition goes back to at least mid 1800's and they are associated with only good things- they give out presents to good children.
Yet, the depiction is being widely discussed as to whether it is offensive to black people. Over the top, yes. So is drag.
Is the argument that we haven't seen it, then we can't judge across the board? I wasn't at the fancy dress that Justin Trudeau darkened his skin and put on vaguely fairytale clothes, to be representative of Aladdin from Iraq. Would it have been ok if he had put on a turkish harem inmate's dress? Some, probably most harem women were captives or slaves. But some people's argument you'd have to be there to have a view. So would harem lady be ok, but Aladdin not? Is it ok for a male drag artist to get up like a harem female slave? If yes, why? Because exclusive women's (sexual) slavery is 'sexy' because we look at it through men's eyes and therefore men's slavery is never similarly shallowly depicted. Is it a sign of whose suffering matters?
Is it the same with a black and white minstrel show as with JK Rowling's article? If we haven't seen one, we should reserve our opinion.
Here is a taste of the Zwarte piets; What would you have to say to Romesh et al in a get up like that?
www.destentor.nl/veluwe/zwarte-piet-aanpassen-na-demonstraties-nee-het-is-hier-geen-discussie-zwarte-piet-blijft-zwart~a207ae34/?referrer=https%3A%2F%2Fwww.google.com%2F
Here is a female sex slave; Is it ok for drag artists (or Romesh in his try-out) to get up in a parody of this or similar? Then why not other slavery?
www.thetimes.co.uk/article/steamy-turkish-soap-opera-about-sultan-and-his-harem-makes-mps-blood-boil-3q2gvd2cn2m