Hate directed at black people, who have been exploited, oppressed, enslaved, killed, and more for over 400 years has a more significant and problematic impact than hate directed at other, more privileged groups. Recentering the conversation away from the black person's experience is a form of dismissal, not validation.

An abuser on IRC calling a black person the n-word is objectively more harmful than an abuser on IRC calling pretty much anyone else pretty much any slur.