The newcomers themselves and their parents by and large contributed to other parts of the country. You, as a citizen of the US, are allowed to move there and take advantage of that infrastructure. The fundamental unit of analysis is the nation-state.

And as it happens the bay area turned out to be too important as an engine of growth for the nation-state as a whole to allow nostalgia about pseudo-Victorian homes filled with hippies or greed for unearned wealth to be the tail that wags the dog. The incumbent power structures there, which represents narrow local interests can and should be overruled by higher levels of government for the good of the state and country.