In a totalitarian government everything belongs to the government your land, your car even the very air you breath belongs to the government. Every decision from citizens daily lives to international affairs are controlled and decided on entirely by the government, of which would consist of a all powerful dictator/king and a close group of his second-in-commands that carried out his orders. Now while this form of government is often most efficient it is also the most susceptible to corruption.
Yes because it can no longer be used for growing crops and leading to soil erosion.
A the mailing of firearms act I’m pretty sure