This is silly, and overcomplicating the issue. The world is very insurable, at a price. The property and casualty business is competitive as hell in almost all parts.
The government needs to just stay out of it.
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The government needs to just stay out of it.
But only when you can't get mortgages, people will begin to stop, and even then some will continue.
It'll take a long time for these changes to trickle out. Especially, when real estate prices in LA are so high.
It might be faster to fix this with zoning. Or if the area is so desirable, find a way to engineer your way out of it.