It doesn't matter if the perps are black. That's a threat right there.
And, oddly enough, racism can take place within a 'race' as well. I've reead a report about recism within the black community - apparently those that are totally black are sometimes being discriminated against those that somewhere in the history of things have had ancestors that have made them a little less coloured.
But it ain't abouty racism. The threat alone is enough for jail time here. Not much jail time, but 30-90 days. A woman that threatened to seek out and kill my mother got this for simply saying "I'm gonna seek you out and break your neck" when she (the woman, not my mother

) was drunk and angry.