this reminds me of the time they tried to split California into two states. They wanted to cut it just south of Sacramento, which would have put the San Francisco Bay Area in Southern California. Well, the good people of Silicon Valley (Santa Clara Valley) pride themselves on being NORTHERN Californians, and refuse to associate themselves with the beach-bum/bimbo stereotype of Southern California, and the good people of the Hollywood region argued a similar case along cultural lines, that we up north were too much of workaholics to earn the title of "So Cal". Most said that if there was going to be a split, to split it just south of Monterey. Well, that would have upset somebody's demographic applecart, so the whole idea was scrapped.
Now I live in a region called Central California, which shares much in common with Southern California, but has its economic ties firmly rooted with Northern California. The culture here is decidedly Central Californian, with an emphasis on clean and inexpensive public water to keep the region liveable and farmable (it had been a desert before the Spanish settlers) and a feeling of civic calmness that is unreal. People here just don't get excited about much, unless the city tries to flouridate the water supply, in which case the townsfolk threaten to burn down city hall. (THAT got kind of funny. Picture a modern city street with throngs of angry peasants fully supported by the police. Need I add that the city council backpedalled on their decision? Now the farmers are keeping the water in check, since their livelihoods depend on unflouridated water. The council doesn't dare make a move toward the reservoirs.)
At some point, we just accepted the fact that Californians are a weird, ecclectic lot. We're uptight, we're laid-back, or else we're pitchfork wielding peasants storming into the city council chambers and demanding that the voice of the public be heard. It's a colorful place all right, and we just accept the differences that go with each region. So who cares what borders are where? People are either going to get along or else they aren't, and no geopolitical line drawn on a piece of paper is ever going to change that.