There is no reason to have students packed into classrooms anymore. Class's could be offered through teleconfrencing and only the best teachers would be presenting, only need to pay for it once.
The real reason they don't do this is
I agree. The government schools are running a tax support farm team system for the professional leagues.
There is a SIMPLE solution. Transfer all sports teams and related “rah-rah” organizations to the counties departments of recreation. ( No need to give up the colors or mascots).
Do that and support for government schooling would drop like a fumbled football.
This is Texas...of course football is somehow involved. :)