Dehumanizing people is probably what lead to this assault in the first place, to be fair. I don't see any other reason why the girl would randomly attack somebody and their child :z
Yeah, I'll tell you what dehumanized her, growing up in a home/community/slum where everyone thinks that the big bad white people owe them everything ever and that it's okay to be angry and prejudiced against them because of stuff that happened forever ago, all the while people like you enable this mindset with your insatiable white guilt political correctness garbage which basically just sweeps all criticism of minorities under the rug
Quit being so PC for a second and just admit that black people are more prone to race-based violence than anyone else in the modern USA. According to the Bureau of Justice 90% of all interracial crimes in the USA are committed by blacks against whites.