> "A large percentage of the workforce in SV is imported from outside the country."
Imported mostly from East and South Asia, from very socially conservative cultures. I wouldn't be so quick to assume that they're necessarily aligned with the Democrats.
They mostly are, although this is a recent phenomenon. Growing up in the 1990s, Indians/etc. in my area we heavily republican, consistent with their higher income levels and general social conservatism. In the 1996 election Asians went for Dole by a slightly larger margin than white people. But today, Asians vote Democrat at a higher rate than Hispanics.