Is the world becoming uninsurable?

Like we see in California, when the government sets a price ceiling, insurance companies just leave. Same in Florida. If the free market truly was allowed run normally, the insurance rates in Pacific Palisades or on the Florida coast would be so high that no one could afford to live there. Is that a bad thing? If someone was living in a house near where they tested missiles, we'd call them crazy. At what point can we say the same about people building and rebuilding over and over in these disaster areas.