You forgot to mention a key fact.
Large majorities of Black and Hispanic Democrats voted against gay marriage - not because they are moderates, but because they don't like gays.
The Democrats and the MSM were so humiliated, they claimed the “Mormon vote” and Mormon ads swung the election, even though just 3% of voters were Mormon.
Being half-Asian, I am ethnically ambiguous as many Californians increasingly are...and though some vote Democrat out of habit and conditioning - in practice, minority and immigrant groups aplenty are more conservative than people think.
All this propagating of transgenderism in public schools for example — has been pushed by ‘white’ progressives and ‘white’ elites. And it turns off a good chunk of Californians.
I was in a cafe near LAX - occupied mainly by retired, old-timer African-American men on the eve of the 2016 election — everything from domestic and foreign policy was discussed —and there was a LOT of support for Trump. Their mentality is not the same those indoctrinated in today’s leftist university system for example.
Conservatives can win in California. We just need to think outside the box.