I’m pretty sure the Southern California map would be red. The largest metro area is San Diego and that’s almost red. I’m gonna have to disagree with you there.
The Southern California part is the only part that even has a shot at being red, but I doubt it would be. The problem is that even in the “red” areas, it’s not pure red - it’s more like 55%-45% or less red, which means that any included high population center could offset the “redness” of the area easily. The Southern California part of the map includes LA satellites like Anaheim. That whole area can be assumed to be almost pure blue, and San Diego is getting bluer by the day.