What about the part where it said, "low-income neighborhoods with a lot of new construction have witnessed about half the displacement of similar neighborhoods

What about the part where it said, "low-income neighborhoods with a lot of new construction have witnessed about half the displacement of similar neighborhoods that haven't added much new housing"? In other words, building more market-rate housing in a neighborhood helps keep that neighborhood's low-income families from getting displaced. Or, to put it another way, the poor are better off when we build housing for the rich (than when we don't build housing for anyone).