"Move to where you can do this if your local environment is too expensive or restrictive. Move to a new country if needed."

Sounds like typical American arrogance.

Everything you mentioned about building up a piece of land from zero, is predicated on a stable legal and economic framework, that protects and values private property. And every country that has that framework, tends to have high land prices already. Try this in some non-developed country, and you'll soon see why the world is considered unjust.