I'd argue it's well-known that income inequality is an existential threat to America. That said, I'd also argue that people _do_ care, but the SF government bureaucracy has proven woefully inept at efficiently solving housing [1] and homelessness [2].
[1] - https://www.businessinsider.com/why-housing-is-so-expensive-...
[2] - https://www.sfchronicle.com/politics/article/S-F-officials-w...