When Target announced that it was opening a store in Mondawmin, a predominantly Black neighborhood in Baltimore, a city struggling with crime and poverty, it seemed like a ticket to a turnaround. And from the start, it was a practical success and a point of community pride. The store, which opened in 2008, carried groceries, operated a pharmacy and had a Starbucks cafe — the only one in this part of Baltimore’s west side. People came from across the city to shop there, helping to soften the Mondawmin area’s reputation for crime and the looting that followed protests over the...