Are you actually surprised that an insurance company is not there for the good of the people, but to make money? They did keep their contractual obligations and paid out their customers, so you cannot fault them for that.

And what the insurance companies are doing is quite normal behavior. They analyze business risks and move out of fields that are not profitable. They are now telling you that they will no longer cover you so you can find another insurance to take over business. That those other insurance companies are more expensive is just founded in the fact that Florida is already a risky state, and the risks just skyrocket through global warming. And with the water temperatures rising as they do, I expect this year to have an interesting hurricane season.

People complain again that they cannot afford to move to safer places. Maybe now they can start thinking whether they can afford not to move to safer places instead.