This article is one sided in that it assumes that White fear of Blacks is baseless, when in fact Blacks commit crimes at around 5x higher rate than Whites. Not all this difference can be explained by poverty, but even if it could, most White people are also afraid of White people who come from social classes with very high crime rates.
I'm not saying that most or any of the attitudes of Whites described in the article were justified, but it's one sided to focus entirely on the police and White attitudes and ignore Black crime.