clearly I need to learn more about stock ownership; but that would require the opportunity to own stock. And I'm from a secondary/lower socioeconomic-tier from a 3rd tier (third world country). So those opportunities aren't readily available to me.

regardless,

the restrictions on trade of physical goods exists due to matters of ownership over government-level permissions (licenses?) for import/export, taxation, an other such kinds of things. It's ownership over whole countries; that's the ownership at play when considering digital trade restrictions.