So, I actually responded purely about your narrow claim, and not about picking citizens at random. I don't really have an opinion about that. Although I would point out that right now we're selecting for a certain type of person who wants to win and can take heat and craft messaging and analyze options in terms of communications spending. But narcissism, more than anything, seems required. What else drives someone to become a politician? Precious few politicians seem like they were "called" to do that work, despite wanting a more humble, quieter life. Maybe someone like Jimmy Carter? I'd say its an intriguing idea, one worth trying on a more local scale, like for mayor or city counsel. See if things fall apart. If not, try at a higher scale, and repeat.