The breakup is not going to happen, as the first thing that is brought up is race. and when race is brought up, all discussion stop.
The issue here is the question of are large school districts truly bad for students. There is some truth to that. when an organization gets to a certain size, by nature layers of bureaucracy start to make changes slow to a craw.
but the coastal vs inland school districts would have similar problems, as they will still be quite large.
so why not divide by four?
or simply maintain the same large district but transfer more power from central administration to individual groupings of schools centered by a high school–in essence, multiple mini school districts.
the coastal vs inland thing is politically dead on arrival. time to move on to a better idea.