Have you ever been on a Lakota reservation? If you had, you'd know that they don't have much infrastructure as it is. If they were able to boot the wasicu off the land that is theirs by treaty, they would have more than enough high demand natural resources (uranium, water rights) to maintain their nation. I just don't know exactly how they think they'll boot whitey off their land after all this time. My guess this is connected to the ongoing water disputes in that area.