Not totally correct, however.

I previously pointed out the examples of the city of San Francisco (and, for that matter, the entire Bay Area/Silicon Valley too) and the city of Detroit/Baltimore.

Those two sections of America - west coast and midwest/east coast - are different. There are more non-whites in Detroit/Baltimore than there are in SF/Bay Area. But the cultural-political leftwing has fucked both communities/areas for years.

I'll admit that demographics can be as or more important than politics are, just as long as you admit that politics can be as or are more important than demographics are.