Why doesn't anyone suggest that there are too many people and that we need to control population growth to rates below zero?
Why doesn't anyone suggest that there are too many people and that we need to control population growth to rates below zero?
You can theoretically restrict the movement of people by decreasing immigration, or restricting local people to move into places with too many people. You can theoretically restrict having more children. Both of those restrictions have been hugely unpopular in places that have tried them. You cannot hold onto power in a democracy or democratic republic if you are sufficiently unpopular.
These are hard problems to solve, I readily admit.
In your opinion what is the end game of not zone restrictions?
Freedom of movement only allows you to get to a destination: it doesn't guarantee that you'll have sufficient resources at your disposal to do something once you at your destination (e.g. acquire a house, or find a job).
People migrating to more dense areas is the problem.
Unless you have an idea for reversing the trend of urbanization, telling people where they can and can't live is going to be a tough sell.