I don't think there's an example of a place that attempted to align in such a way and magically it worked. Even within places where people agree broadly about the role of government, etc. Such as NYC. There are always the same disagreements about how we run the way we live, such as the NYC mayoral primary that happened in 2013.
psuter said, "I find the idea that political and cultural boundaries should align to be a very sad and unimaginative one." Which I took to mean that psuter believes realigning CA along cultural or political boundaries (like saying, "republicans over here, democrats over there") is very sad and unimaginative.
To which you responded "How else could you do it? Tax only the people in favor of infrastructure improvements and prevent everyone else from using them? Only arrest people using recreational drugs if they voted against legalization?"
Which is why I tried to answer your question "How else could you do it?" by pointing out another way it can be done is, you keep things the way they are now meaning, you arrest, tax, and govern everyone equally depending on where they are standing (some things being illegal in some jurisdictions and not in others).
It seems like there's some sort of breakdown in understanding between the two of us here.
How it's done now is by politicians counting votes and setting the boundaries for their own benefit. This would be another--more permanent--opportunity for them to do that.
(Not suggesting you hold an opposite view.)