OK here is something kind of off this topic but kind of on target as well.
California will lead the break-up of the US (Dev 2)
IP: Likelihood 8/10. There are some indications already that California wants to split off and such pressures tend to build over time. It is hard to see this waiting until the end of the century. Maybe an East Coast cluster will want to break off too. Pressures come from the enormous differences in wealth generation capability, and people not wanting to fund others if they can avoid it.
Now if we get fusion or even wave energy generation we could desal and be independent.
We do contribute far more fed money than we ever get back so it kind of makes sense.