So let me try to put the author's argument in order:

(1) The author tried to get homeowner's insurance, but was denied because their home was a significant hurricane risk

(2) The author (maybe?) got insurance through a state-run FAIR program, but then cites news reports that these programs are close to insolvency (As are a significant amount of non-state-run homeowner insurance programs).

(3) The author is like, "well, if it's so hard to insure my house, maybe I should think about living somewhere else." And then generalizes to "a lot of places should be uninsurable and uninhabited - apocalypse here we come"

Makes sense to me. Good comprehension