Earlier quoted context omitted.
Expensive cities will never have enough housing. The cure is to discourage investment in them and force it into less dense cities.
They are expensive largely because of housing so your statement is a bit of a tautology. Historically NYC housing used to be a lot more affordable before they stopped building, reducing supply relative to demand and thereby raising prices.
https://www.huffpost.com/entry/new-york-city-immigrants_n_44...