Smaller population simply means each person’s vote counts for more.
What about the smaller tribes who live under strict patriarchies that can’t vote? Plenty examples of those in history and today (cults for instance). There are also examples of massive cities with egalitarian urban planning with no centralized temples or food storage. So again I ask, what makes you think population size has anything to do with their politics?
Musk already did a Nazi salute to a cheering crowd a couple days ago, check back on what exactly?