I would think we wouldn't need a UN declaration to do this. Natives deserve the same rights as everyone else, no more, no less. Abolish the reservations and any special status they may have. Their culture should be protected from destruction, but trying to expand it and keep it alive should be a solely private matter. Plenty of people support keeping culture alive with taxpayer dollars, my question: if it's so important to you, why not pay for it yourself?