Comment by Matticus_Rex

Parts of many cities have always been in floodplains, but after just looking it up, it does not seem that "most cities" are meaningfully in floodplains. This also does not automatically make even the parts within a floodplain uninsurable, depending on the circumstances.

Likewise, the level of infrastructure, tornado, and wildfire risk for the vast majority of the country is not sufficient for them to be uninsurable. "Occasionally a tornado comes through and gets 1 out of 10k houses" is not even a huge pressure on insurance prices.

An