Well, that's the lyric from the Michael Jackson song anyway. But it DOES matter if you're writing a BBC online news story. THIS story from BBC Wiltshire tells the terrible story of a white youth who was beaten up by eight youths. It doesn't mention their ethnicity.
THIS story from BBC West Yorkshire tells the story of an Asian youth who was beaten up by four youths. It tells us the four were all white.
If it was necessary to mention the offenders' ethnicity in the second story, why did the first story not mention that the eight attackers were of Asian descent. I don't think it is too much to ask for a bit of consistency here. The BBC has a multi volume editorial policy document. I would have thought it would cover such an instance.