Based on my visits to my parents down there, and other visits over the years, my tourist slogan for Florida is “The Land of Bad Ideas”. You won’t see it at Disney World, but seems to me that FL attracts folks that tend to not think things through to their conclusion.
So to answer your question: more than you might think.
Florida is the gateway to the America’s. It’s how all these invasive species got here in the first place.
People breed alligators in their bathtubs, release giant pythons. Maybe they don’t need to breed the moneys but do things to support their population growth (kill predators if any, leave food, etc...) or they can breed monkey without the disease. The invasive monkeys did get here and released in the first place after all.
So to answer your question: more than you might think.