Concentrating poverty

Haven't the champions of urban redevelopment policy been telling us the purpose of bulldozing our housing projects was to create "mixed income" neighborhoods and avoid concentrating the poor? Because that doesn't seem to be what's happening. 

New research shows a steady increase in the extent to which Americans are geographically divided by income. The below charts are from a paper by Kendra Bischoff and Sean Reardon, professors at Cornell and Stanford respectively, on what they refer to as “residential segregation by income.

We're still concentrating the poor. We're just moving them out of the parts of the city we want to sell to our rich friends first.