That document is correct though.
My guess is that apologists in this thread live in lily white areas and as a result have a romanticized view of blacks as poor oppressed people, who, if only given a chance would flourish. The reality is far different.
https://en.wikipedia.org/wiki/St._LouisAfter years of immigration, migration, and expansion, the city reached its peak population in 1950. That year, the Census Bureau reported St. Louis's population as 82% White and 17.9% African American.[42] After World War II, St. Louis began losing population to the suburbs, first because of increased demand for new housing, unhappiness with city services, ease of commuting by highways, and later,
white flight.[43] St. Louis's population decline has resulted in a significant increase of abandoned residential housing units and vacant lots throughout the city proper; this blight has attracted much wildlife (such as deer and coyotes) to the many abandoned overgrown lots.
East St. Louis named America’s most dangerous city - AdVantageNEWS.com
https://advantagenews.com/news/east-st-louis-named-america’s-most-dangerous-city/
https://www.stltoday.com/news/local/crime-and-courts/fourth-child-in-five-days-dies-in-gun-violence-in/article_41d3d5be-040e-58bb-a67f-83285652c7fe.htmlFourth child in five days dies in gun violence in St. Louis | Law and order | stltoday.com