GeorgeandDot said: "I must say that Sher probably will not cast a PoC. He tends to focus on historical accuracy and in the era of My Fair Lady, a PoC would not be an aristocrat. For some directors historical accuracy of this nature isn't necessary, but Sher tends to go for as authentic as possible. In fact I believe he even said that he was most likely going to cast a British actor as Higgins and was going to try to fill as many of the roles with English actors as he possibly could. It's just how he works. He doesn't really do non-traditional casting."
The problem with that is if you look at The King and I and South Pacific, Sher cast Japanese, Korean, Filipino actors as Siamese (i.e. Thai) and Hawiian and Chinese actors as Tonkinese people. Obviously, the homogenization of Asian peoples in casting is a problem that's been around for a while and is not unique to Sher (the original production of R&H's Flower Drum Song received this exact criticism, I believe), and I understand that this is a bit nit-picky and granular. It also gets kind of dicy saying that in the Edwardian Era a POC wouldn't be wealthy. Freddy is in the upper-middle class, as far as I remember. While there wasn't a massive black population in England at the time, there were still roughly 10,000 black British people living in the country, mostly around London. Of course it was rare for black Brits to become wealthy/move up the social ladder, but it wasn't impossible. Also, when we're looking at race in Britain, it becomes difficult to apply American understandings of race. Who we define as black/a POC can be radically different in the UK/Europe.
My point, I guess, is that justifying Sher's casting decisions through historical accuracy is flimsy. Beyond that, my general belief when it comes to historical, race-specific accuracy in Broadway shows is that if race doesn't play an integral role in the character/broader story, then there's no legitimate reason not to include POC in those productions. If you've got a show like Showboat, for example, casting a white Joe or a black Steve simply cannot work because the race of those two characters is a requirement for the story to make sense. The underlying social commentary in My Fair Lady is class, however, not race or racism, so I have trouble buying into the idea that it needs race-conscious casting decisions.