If you want to never leave the Bay Area or LA/SD area yeah you're in a blue state. As soon as you take a road trip to a pretty national park be prepared to encounter plenty of Red.
So? Why is that an issue? They have no say in how the place is run (and resent the blue part of the state for it, which is why splitting the state keeps getting proposed) so unless seeing a Trump bumper sticker ruins your day it doesn't really affect anything.
I'm relating to the original post, the commenter said "Omaha is blue but everything outside is red". This is also true in California. Metropolitan areas are going to be blue, rural areas are red.
> Unless seeing a Trump bumper sticker ruins your day it doesn't really affect anything
No, but walking into a bar or restaurant with my girlfriend and having everyone there stare at you and treat you differently is a thing. Only saying that you're not entering some blue paradise in California.