I'd say the purpose of a nation is to manage resources, which are often natural resources. Some locales have deeds for land have time limits; you don't own the

I'd say the purpose of a nation is to manage resources, which are often natural resources. Some locales have deeds for land have time limits; you don't own the land, you have been granted rights to it. Sometimes the FAA will limit airspace usage for private property, for instance restricting airspace around stadiums during sporting events. You're right that a corporation can't unilaterally declare the airspace over their land their headquarters sits on as a no-fly zone. But the government may still work with them on policy.