I fantasize about a native american nation making a legal claim that copyright doesn't apply to them, because their culture is centered on sharing information,

I fantasize about a native american nation making a legal claim that copyright doesn't apply to them, because their culture is centered on sharing information, and that this philosophy is fundamental to their identity. Followed, of course, by a file sharing service set up on tribal land. If they can carve out an exemption for casinos, why not copyright? (I am not a lawyer, and am not interested in hearing about why this could or couldn't be done... I'm just fantasizing)