I hate to tell you... But shine networks never left. There's still plenty of good ol boys up in the holler making mash.
BUT, more to the point, even if, there's still diesel/kerosene... Which I am less educated on, but I have a buddy that does it. so the knowledge is there... And propane...
Hell, I don't care. If push comes to shove, I am happy as hell on a horse.
The point being it would be hard to keep rural parts down.
Doesn't bother me a bit if they still exist. However, if they're being used to produce alcohol as a fuel for ICEs, I wager the federal gov't will step up its enforcement activities against them manifold times.
As far as fuels go, let me be more precise - there won't be any petroleum-based fuels, like diesel or kerosene, to act as a base to which alcohol is added. Not unless one has one's own source of raw oil and a refinery to produce refined fuels.
Propane won't be available either.
So it'll be down to running ICEs that can burn pure alcohol.
Yes, I know it can be done, but I also know that (a) current blocks that can do that are not widely available to all and sundry, (b) coverting an existing block over will be difficult, and (c) replacement parts will become harder and harder to come by. I also know that most rural folk, whatever their resourcefulness is, are not going to be suddenly sprouting funny-car engines from out their ears.
As a result, most rural folk will not be able to continue with ICE for any significant period of time if the eco-fascists in California are allowed to act as the tail that wags the national dog and set national fuel and ICE policy based on their own idiotic political agenda.
It'll be EVs, and building up ersatz charging facilities is likely to be where the ingenuity will be brought to bear - no need to machine blocks to run pure fuel as such if one can simply build a generator that will utilize alcohol or other available fuels to recharge the EV - or else it'll be horses.
So yeah, taking a "let them do it to themselves" attitude with California is a good way to find one's self being governed by California eco-fascist principles without ever having had a say in the matter.