Private property is a civilized abstraction that alleviates the requirement to kill people who enter land you've claimed for your own, for as long as you can defend it.
It's how national borders work.
It's how national borders work.
It's how national borders work.
A distinct negative, as far as I am concerned. Passports only became a thing around World War 1. Artificial restrictions on movement by labor is a massive economic distortion that essentially treats labor as a captive resource by mutual agreement between states. Would-be economic migrants whose goal is to work are equated with marauding armies.
Get rid of welfare states, and you can get rid of borders. But you can't maintain a welfare state with generous welfare subsidies and have open borders.
Thanks for your reply.