nations should be able to choose which individuals they welcome in, just like you do with your home
Why should nations be able to stop people? People are the greatest asset for a nation. Some nations don't let people leave, other nations want to pick and choose who can enter. Why?
taxes in those countries are paid by individuals, so in a way they own the nations & the nation is their property, just like their homes and other private property
yes, if they whole region/nation were private property each individual could decide who they want to let on their property. ideal. currently so much 'public land'