Game is too crazy in South FL. Coaches absolutely don't get paid enough there to have to deal with the regular stresses of coaching on top of worrying about the high school transfer portal. I coach in Houston and, while there definitely is recruiting here, it's much tougher to do. The coach at the old school has to sign off on the player transferring to the new school, otherwise he can't play varsity ball that season. Some players will try waivers to get around it, but even so it's still tough.
Transfers will happen, but you shouldn't have to worry about your program being poached from the entire offseason. It just aint right.