I'm dismissing it because she has shown herself to be of poor character and not corrected her past mistakes and taken advantage where she had no right. It is black and white claiming ancestry, if your family is listed with a tribe - all good - otherwise no. No apology, no public donation to http://www.collegefund.org/ to correct the error, the no reason to trust future motives. Who lost out because she claimed something?
There are no pure ideas in politics. There is the law, motive, and regulations. The person driving it is of importance on how they dealt with others in the past.