Look up pro gamers and ritalin/adderal use. Its not illegal cause the sport is hardly regulated but its essentially the same thing
Just cause u see fat runners, doesnt mean runners are in the same condition as gamers. How dumb do you have to be to assert something like that? You can site ultra runners and robert young all you want but i assure you, you can find far more pitiful specimens in the world of proffessional gaming.
To put it into terms even the simplest of simple minds can understant, would you rather your child be an athlete that spends all his free time playing sports or a child whose a gamer sits on his ass playing warcraft all day?