Are you saying climate change only impacts certain parts of the globe? We have seen our rates go down (renewal is happening now). Also, insurance rates do not impact the underwriting decision on a mortgage (at least not for us or anyone else I know who has gotten a mortgage recently).
Sounds more like whiny *** liberal fear mongering than a real issue. If a company (say All State for example) pulls out of FL, another company will move in. Insurance is, always has been and always will be nothing more than gambling. The company is gambling that nothing bad will happen to you and you are gambling something bad will happen. As with all forms of gambling...the house (company) usually wins.