Idk, before Kirk no one even raised these concerns, and even if they were raised they were inneffective.
He used racism as a spectacle to outline systemic problems.
Is it okay to do that? I dont know.
Was it effective ? Yes definitely.
Did it have side effects like increase in bigotism? Dont know for sure but probably yes too.
Is it worth it? I don't know either.
I'm not white, I'm sensitive to racism too, but I recognize that things were too far gone and probably needed some spectacle speech to get people to do something about it.
Things are not simple, we shouldn't be too keen on picking sides.