I have lots of sympathy and even empathy. Our twins are homeshooling because they wouldn't be allowed into K early here. My oldest DD9 was admitted early, before they changed the policy and it wasn't enough over time.
I would definately look into other private schools in the area and even other school districts if it is a drive you'd be willing to do on a daily basis. I would also ask what the plan would be if he started school the following year. Would he still be expected to sit through K? Are they willing to do achievement testing and place him accordingly? That might give you even more insight into what the different schools stances are on gifted children and whether it is worth fighting with them over this or looking for other options.
