According to the speaker, curing ADHD with pills solves the problem by reducing creative potential of a mind. A better approach would be to create an environment where people with ADHD can thrive.
(Note, that I don't have any real experience with ADHD, this comment is based only on the talk).
And this is in his optimal environment, completely under his control.
He is not "thriving." He is cache-thrashing.
Yes, ADHD denial is a very popular position. It has about as much backing in science as climate denial. The idea that ADHD meds reduce the "creative potential" of the mind is pure nonsense.
But if you're an adult--if you get to decide what does and does not go into your body--and you find out you might just have so-and-so condition and you could be much better off just taking this-or-that pill every day--and that the worst that can happen is that the pill just doesn't help--then you should forcibly shut down the ugh field[1] associated with the treatment, and just try it. If it helps, keep going. If it doesn't help, stop. If you don't like the way it makes you, stop. Just find out, one way or the other.