Earlier quoted context omitted.
Except not every city is midtown Manhattan, and not every rural area is the Ozarks. You can get "varmints" and long police response times in New York and LA. Most people in the "country" don't hunt, fish, or gather firewood, and most people in the "cities" aren't living hyperdense urbane chic lifestyles. In reality, most of the country lives in between these extremes.
Most people (by pure numbers) by definition live in very large cities. In fact, in the USA, most Americans live in very large coastal cities. So that argument doesn't hold water.
The premise that urban and rural dwellers generally have such radically divergent ways of life that it's infeasible for a single entity to govern both is a bit of a populist myth.