Originally posted by Ira The students in question are by and large illegal, with parents who don't pay any taxes.
Really? Are you sure? Nearly all school districts are supported by property taxes. Everyone who lives here pays property tax, even renters (hint: it's part of the rent).
The other main funding mechanism for many states is sales tax. Again, everyone who shops for clothing, auto parts, household items, whatever, pays sales tax.
Some states have an income tax. I don't believe Florida has a personal income tax, but does have a corporate income tax. So, that's not applicable there. Arizona does have a state income tax.
Still, most school funding comes from property taxes at the local level. And everyone living in each county pays that.