Putting on my most cynical/paranoid hat, I will say: If everyone lives in cities, and if the cities depend upon supplies trucked in from remote locations, then the government has a very easy time dealing with dissent. Absolutely any law can be imposed on the population, and what are the people going to do about it?? The day may come when we all live in the Warsaw Ghetto and crawl through sewers trying to bring back food from beyond the lines of an encircling army.
Or we can choose to *be* the encircling army.
This is nothing more than another attempt at people control. You are correct in that if they control where people live and control their food, water, utilities then they control the population. They want to be like Casto or Chavez. Same applies to gun control, because they don’t want anyone fighting thier plans to control all of us.