People shaming jo for supporting a black hermione now, but in past saying emma was exactly how she envisioned her are really missing the point. Jo is white, and she saw a lot of herself in the character so it makes sense for her to see hermione as white. But despite this she has always, ALWAYS said it’s amazing how people see the characters differently and she has always supported that.
So don’t start attacking her now for being fake, instead maybe question why you have to be so bitter and cynical despite this happy and amazing casting.