The GP is incorrect, but using the absolute number of housing developments in NYC is also misleading (since NYC has lots of middle-income housing developments too).
On average, personal drivers on NYC roads skew towards wealthier and suburban, whereas city dwellers of all demographics broadly ride the subway and other mass transit. Congestion pricing will certainly represent a cost for poorer New Yorkers, but it will disproportionately be shouldered by wealthier demographics that are often on the road by choice (e.g. choosing to commute by car from Long Island because the city has inadvertently subsidized doing so with free parking.)
On average, personal drivers on NYC roads skew towards wealthier and suburban, whereas city dwellers of all demographics broadly ride the subway and other mass transit. Congestion pricing will certainly represent a cost for poorer New Yorkers, but it will disproportionately be shouldered by wealthier demographics that are often on the road by choice (e.g. choosing to commute by car from Long Island because the city has inadvertently subsidized doing so with free parking.)