Ok. But this part is pretty reasonable:
Think about how wasteful all of this is. We throw people in jail for using Adderall without a prescription. We expel them from colleges. We fight an expensive and bloody War on Drugs to prevent non-prescription-holders from getting Adderall. We create a system in which poor people need to stretch their limited resources to make it to a psychiatrist so they can be prescribed Adderall, in which people without health insurance can never get it at all, in which DEA agents occasionally bust down the doors of medical practices giving out Adderall illegally.
It's absolute bullshit that I can't buy amphetamine at my corner store if I want to. Yes, it's probably bad in the long-run. But I fucking want it.
Edit to add more substance: I also believe without evidence that "ADHD" is a lingering result of the transition of humanity to a sedentary lifestyle, but some are better equipped to deal with it than others. The whole binary of "You have ADHD" and "You don't" is utter nonsense made up by the prohibition state to justify medicating people with amphetamine.