First, I have no idea who Wayne Brady is. I haven't watched television in nearly 12 years.
I get upset when leftists make claims of "race" when race is not the issue. Some of the "code words" they point to are not just hard to see, they are invisible.
That said, I see absolutely nothing is Mr Brady's letter, especially the line you quoted, that has anything even remotely to do with a "race card."
A little more apologizing might be in order here.
The part I clipped showed one nonsequitur, and careful readers will notice the “And” that began my second sentence.