Perhaps someday they will have robotic solar-powered machines (since there’s lots of sun in CA!) that can munch through the undergrowth, cut it down, and cart it away to do something useful with it (cleanly burn it as biofuel somewhere other than having it burn smokily on a populated mountain side?).
I went to UC-Berkeley for 4 years in the late '60’s, early '70’s. There there are even modest homes perched on the steep Berkeley hillside with open car ports right next to the house. Much of the Oakland side of the Bay, at least the first few blocks down to the Bay was built on landfill out into the Bay.
So forget about fire. I always wondered what was going to happen to all those homes in the Berkeley Hills with the next really Big One- cars from above sliding down the hillside through homes below - and they say a lot of shaking can literally dissolve the landfill in the Bay, causing it to slide out from shore into the deeper areas of the Bay in one big mudslide.
My sidetrack into wildfires into California was occasioned by thinking of how recharging Li-ion batteries is on a small scale going for the “now” and not wanting to have to bother about the long-term. And the thought popped into my head that the same sort of thing goes on in CA, which I adore as a state. Hopefully, California will show the way as it has many times in addressing some of its remaining long-term possible problems.