Floridas illegal alien problem

I was driving down the street where I live here in south florida and counted 15 iguanas. All were in the same area on the grassy shoulder of the road like they are every morning. They come out in the morning to get sun and sometimes will return in the afternoon. The only problem is they are not native and they are everywhere. They will eat your flower beds up and leave a mess on your seawall. Why they only recently have been become out of control kind of surprises me. The problem with invasive non native species in south florida is that if you let it go it will thrive. Iguanas are not the only problem, right now in the everglades burmese pythons are abundant and big. Pythons are carnivores and will definitely throw things out of whack in the everglades which is why they are actively studying and erradicating them. The iguanas on the other hand although a definite problem will be harder to control because they are already everywhere and some people dont want to see them go. I have also heard about monitor lizards on the west coast by Naples and the list of invasives never ends. Theres Melaleuca, Australian Pine, Brazilian Pepper,Old World climbing fern, Japanese climbing fern, and Kudzu. As for non native fish we have Snakeheads, Walking Catfish, and Mayan Cichlids, and now the latest is the poisonous Lionfish in saltwater that has been spotted on the reefs. For mammals there`s Nutria, Feral Hogs, Roof Rats, Squirrel Monkeys and more. I can go on and on but I would still not even scratch the surface. There was even one case of Iguanas falling from the trees during a cold snap.
Considering man introduced most of these species I find it interesting that we actually took the steps neccesary so long ago to protect the wilderness areas we have left. But that being said letting your guard down for a second has and will prove disastrous.