(hugs).

I have adhd as well and my childhood was rough. Teachers always loved or hated me.

I have some questions for you:

1. Has your son been officially diagnosed with ADHD?
2. Is he on medication?
3. Is it possible for you to send him to a different school? Montessori for example? Or a private school?
4. Does he have conduct problems (disrupting class, etc) or is he just not doing his homework?

I do think it's best to keep him in school if possible. You're right, he does need the social interaction, and he needs to learn to work with others.

Here are a couple books that might help:

Parenting Children with ADHD: 10 Lessons That Medicine Cannot Teach (APA Lifetools) by Vincent J. Monastra

Smart but Scattered: The Revolutionary "Executive Skills" Approach to Helping Kids Reach Their Potential by Peg Dawson, Richard Guare

And a book you can give to his teacher:

Helping Kids and Teens with ADHD in School: A Workbook for Teachers and Parents on Classroom Support and Managing by Joanne Steer, Kate Horstmann