Day-Z, I also have a HS honors student who is just about at the breaking point. She's a lot younger than your son, but I definitely feel your pain. None of her teachers or counselors have been very sympathetic to the very real problems we've been having, quite bluntly. We are sort of at a similar crossroads.
Here's what I'd probably do with a child age 13+:
contact your nearest JC/CC and ask if they'd allow a non-matriculated enrollment in a course or two. Then try it. Such institutions often offer coursework in the evenings or at times when it wouldn't be necessary for your child to miss school.
This might be a way to try before you buy (ie-- try the college courses before leaving high school). This also leaves a lot of choices open--
If a single college course in an area of interest makes high school tolerable, great-- you can do that.
If the JC/CC level isn't right, then you know that full-time isn't going to be significantly "better" than full-time high school, so maybe looking at other options for higher ed makes more sense.
If it feels like a liberating epiphany, then you know that it is the right thing to do.
My best friend did this, btw, and it was easily the right decision for her-- she had an AA by the time she was 18, and was happily stepping into her career at 21. But then again, she was a person who always seemed to just KNOW what she wanted to do. I changed my mind once I was in college, and lots of people (especially those gifted people who have multi-potentiality at work) can find that they need the extra time to make decisions about life direction.
