Melissa Harris Perry has a lot of feelings about Star Wars, primarily that it's racist, because Darth Vader was voiced by a black guy but played by a white guy.
The part where he was totally a black guy whose name was basically James Earl Jones...but while he was black he was terrible and bad and awful and used to cut off white men's hands, and didn't, you know, actually claim his son, but as soon as he claims his son and goes over to the good he takes off his mask and he's white.
Maybe she doesn't acknowledge the prequels as being real, and who can blame her for that, but Anakin/Vader is a white guy in those and he kills so many younglings. He also first "claims his son" while he's still "a black guy" (a whole movie before he takes off his mask) and, well, if you've ever heard Darth Vader's on-set voice, you'd understand why they dubbed over it with James Earl Jones:
Racism isn't funny.
No matter which way you look at it, joking about another pony's race is hurtful and mean; and us ponies definitely aren't about that. It is even hurtful to assume characteristics about a person based off of how they talk or where they're from. The Southern Poverty Law Center is a good resource to look into tracking and confronting hate of all types.
No matter what color your mane is, no matter what part of Equestria you're from and no matter what your neigh sounds like, the herd is a safe place for all bronies.
George Takei initially picked apart Marvel for what he claims was blatant backpedaling on their part, when Marvel blamed the casting selection on the Chinese market as their reason for avoiding being associated with Tibet.
Then in the comments section Takei went off on what he views as a deep-seeded systematic problem of casting actors in movies for Asian roles.
"To those who say, "She an actress, this is fiction," remember that Hollywood has been casting white actors in Asian roles for decades now, and we can't keep pretending there isn't something deeper at work here. If it were true that actors of Asian descent were being offered choice roles in films, these arguments might prevail. But there has been a long standing practice of taking roles that were originally Asian and rewriting them for white actors to play, leaving Asians invisible on the screen and underemployed as actors. This is a very real problem, not an abstract one. It is not about political correctness, it is about correcting systemic exclusion. Do you see the difference?"