I agree that screens contribute to the issues of attention and executive dysfunction. But the thing with ADHD is that there is no "treating the cause", because the cause is genetic and there is no cure, there is only management of the symptoms. As for dependency, people with ADHD report to chronically forget to take their stimulants, so there's that. For me personally, I find things like weed way more addictive, and I didn't notice any issues with sleep or sex (and I think you might be confusing stimulants with SSRIs here in regards to sex).