Dave19 said: "You can't make audiences foce to focus on race in one show and force them to be blind in another."
You can't force an audience to do anything, but you can certainly ask an audience to focus on race in one show and to be blind to it in another. As I am fond of saying, there are no rules, and certainly no one size fits all rules.
Race is a loaded subject in this country and what I usually do is suggest that people think in some other channel that is not so heavily loaded. E.g., tall people vs short people.
The majority of roles are not very specific unless we go out of our way to treat them that way. And when it comes to race, we way too frequently go out of our way.
Are there times a minority should be cast in a role because of the role? Yes. Are there times a minority should not be cast? Yes. Are there times a role can and should be color blind? Yes. Are there times a role should be color-conscious? Yes.
Doing away with color-blind casting means not only no white MLK but also no John Douglas Thompson as any but one Shakespearean leading role, and certainly he need not apply for Chekhov or Ibsen.
We cannot throw out the baby with the bathwater with stupid rules. Let's be smart about all this.
PS I agree about playwright control and much of the rest of the stuff in that silly petition. So do most of the other theatre professionals who didn't sign.