I'm in Florida, too, and I've found a lot of secular homeschoolers here. I think part of it is the horrendous overcrowding in the schools. In my area even the private schools are filled to the max.
Don't know where you are in Florida we are still in building mania here in Pasco north of Tampa portables everywhere and new schools going up every year. Yes they are crowded but that is not really the problem it is the lowest common denominator. Teachers are forced to gear the class to the slowest student so the majority of the students are just plain old fashioned bored out of their socks. As far as the social stuff both of mine stay real involved in scouts that is a much nicer social environment than the schools.