For an example drawn from another part of the country, look at the district in Iowa that repeatedly reelected Steve King (R) to Congress, renowned and avowed xenophobe and ethno-nationalist, until he became an embarrassment.

What makes you think that any given Bay Area Congressional district would have the same number or more xenophobes than his district?

I didn't say the Bay Area was by any means perfect. The diversity here is still tainted by huge inequality, some of which falls along ethnic lines, which is what the article in part caricatures. But xenophobia isn't a major vector of the problems at this point.