https://www.indybay.org/newsitems/2018/07/02/18816285.php
Housing as a human right is sometimes superseded by the right of speculation. Low-Income Housing Tax Credits (a Federal program), non-profit or cooperative housing, and SROs (single residency occupancy) are three solutions to the housing crisis.
Strategies like public subsidies for building social housing are known from earlier housing emergencies. The Vienna example shows government housing policy can go different ways and strong external pressure is necessary.