Well, I am a pessimist about this and my response will likely not make anyone happy; but I think racism is endemic to our culture on a historical level. I think there's no escaping it. Slavery is still incredibly recent in our past, and its consequences continue to weigh heavily on the black demographic. Lynchings continued nearly unchallenged until after WWII, and desegregation didn't make any real strides until the 1950s and '60s. The history of institutional racism in this country can be traced as recently as the teenage years of our parents, and there's no denying that it remains an influential factor in the social well-being of blacks today.
Because of all this, there is absolutely no removing it from our generation, and likely from the generation to follow. Simply bitching about these accusations does no good, because the wounds haven't healed yet. There are blacks alive in this country whose parents, brothers, sisters, etc. were lynched, and there are black youths being targeted by police. Anything can be racist because racism is simply part of our cultural DNA. There's no exorcising it.