I’ve lived my whole life either in Florida or within 2 miles of the state line (in Alabama).
All of Florida is humid, and summers are long. The only variation is that in northern Florida the cool weather lasts longer, the seasons are a little more defined, and the cold snaps are more extreme than in central and south Florida.
All of Florida is prone to hurricanes, but the parts of Florida that get the least amount of direct hits would be the northeastern coast (from the GA line down to around New Smyrna Beach), and the “armpit” of the state (east of Panama City and north of Crystal River).
Obviously anywhere near the coast will be susceptible to rising sea levels, so you would want to be inland. However, the inland parts of the peninsula are susceptible as well due to the high water table. The inland panhandle is the safest part of the state in terms of rising sea levels, but these are also the most rural and culturally traditional parts of the state and would provide a massive culture shock to someone from San Francisco.
Things that will eat you? Alligators and sharks? Alligators are plentiful, but they stay away from places that are popular for swimming due to all of the people. They mostly live in water that you wouldn’t want to swim in anyway (retention ponds, swamps), unless you are an idiot. Sharks are there, and New Smyrna Beach, FL has been called the shark attack capital of the US.
South Florida is politically left-leaning, Central Florida is a mix, and North Florida is more right-leaning. Exceptions in North Florida would be Tallahassee and Gainesville, which are college towns.
All of that being said, I’m not sure why Florida is on your radar. I don’t think it has what you are looking for.