I can totally see homeschooling as an alternative to the failings of the US school system, but I don't think you can recreate the variety in a public school setting where everybody from the community is there. It's not a want to thing it's a can't thing -- I'm not sure you can have the scope of awareness yourself to expose your kid to everything to properly prepare them.

I have ADHD too and was only diagnosed in my 30s, so I feel for you and your kids -- Make sure they know it can be part of their superpower too ;)