What a wonderful person she was, a national treasure of America and an inspiration to the world.
Without her, the America is even less great.

Children generally don’t have a clear and settled opinion on trans rights. This actress saying she doesn’t agree with Rowling can make them think, so it is useful for trans rights that she said this

Yet her saying this would be noticed by many Harry Potter fans and hopefully make them think. While not taking the role would not communicate anything to the fans

Like corruption, imperialism is a human thing. Not only the US or the West can be seduced by it.