It's not new ground, nor do I believe it to be necessarily unethical.
People can and do advertise in predominantly white settings or black settings, e.g. a church or a sports game or a magazine.
Advertising has always, always, always been a numbers game. Didn't advertise on billboards in the middle of Wyoming? Maybe because there was lower ROI than elsewhere.
People can and do advertise in predominantly white settings or black settings, e.g. a church or a sports game or a magazine.
Advertising has always, always, always been a numbers game. Didn't advertise on billboards in the middle of Wyoming? Maybe because there was lower ROI than elsewhere.