I'm not saying it doesn't exist. I'm suggesting that it be considered a characteristic, and not an external force. This way, we don't grow dualistic, differentiating between oneself and one's brain.

I guess it's the dualism here that I'm criticizing, not ADHD itself. See the fourth paragraph:

"if you have the 'illness,' the real problem is that, to your brain, the world that you live in essentially feels not very interesting."

This distinction between "you" and "your brain" is what bothers me.