No one ever said you can't comment on the matter, by all means do, that's the problem with where we are today. The majority in our country are too terrified to face or talk about the real issue of racism here and how it's still alive and kicking. But keep in mind, problems begin to arise when you start to think that your opinion, as a member of the majority, is more valid than the actual people that live this on a daily basis. Your opinion will never be more important or relevant than the lived experiences of minorities and that's a fact.
That's the whole issue, for years the majority has been telling minorities that "racism is over", "you're being radical", "get over it", "we have a black president now" etc. Once again, how can you ignore the opinions of people who live this on a daily basis as not being valid or tell us we're the wrong ones?