I would love to split New York into two states and get off from under downstate's tyranny. New York is an unconstitutional shotgun marriage between upstate counties and downstate counties.
Hardly "shotgun". This division originated in the colonial period. NYC was the harbor to Britain from which all things upstate flowed, and from where upstate settlers came.
That imbalance has existed ever since. And continued as NYC grew in size, wealth, and prominence. Sorry if upstate, more rural regions never managed to do the same.
As for California, the topic of this thread, forget about dividing. I actually hope it considers independence from the Union. The other Red States don't want them anyway, as Red Necks online here demonstrate.
OK, let the Red States cope when a fifth of our national economy goes away. And while we're on the subject, there's Texas, that's been making noise for years about seceding. Let them go, too.
Texas contributes little to the US except attitude. And having lived there for years I know they view themselves as a separate country already, going back to when they were in fact an independent republic.
Their state flag is the same one that was once their national flag, that really represents how they view their statehood. Sorta tentative, when they feel like acknowledging it. Let them have their oft-stated wish to be their own country again.
Fine, we don't need them. We can continue to buy their oil, cattle, and other products, because who else is a ready, nearby market? And cut our Federal losses supporting them.