There is a problem with having huge national parks that no one&#x27;s mentioned.<p>The SF Bay Area is plagued by a severe housing shortage, resulting in very very high rents. One reason is because local governments block new construction in the existing city and town areas, but there&#x27;s another reason why housing is scarce, which becomes immediately apparent if you look at a map (eg <a href="https:&#x2F;&#x2F;www.google.com&#x2F;maps&#x2F;@37.4359471,-122.1895837,60360m&#x2F;data=!3m1!1e3" rel="nofollow">https:&#x2F;&#x2F;www.google.com&#x2F;maps&#x2F;@37.4359471,-122.1895837,60360m&#x2F;...</a> ).<p>The Bay area is surrounded on all sides by national parks, filling several times as much area as the actual inhabited places. These are places where people could be living, which would make housing more affordable for the entire area.