I understand your emotion, a lot of people were bruised by the vote, but I think now you have the right direction and course to take action. I also want to take this opportunity to mention that this is NOT a problem solely directed at Native citizens with African ancestry. In California, a similar case is occurring involving several citizens of the Pechanga Nation who have no reference to African ancestry, they are being expelled because they can't prove the citizenship status of a long deceased Indian ancestor.
The cultural affiliation with Indians of African descent and there respective nations is documented by several accounts as freed slaves moved into the Indian territories after the Civil War and were sometimes referred to by the Black Indians as "State Negroes."
The problem as I see it is an attempt to grandfather citizenship based on genetic heritage. In this case it can probably be traced to a deliberate punitive action to punish an entire class of people because one person in the class filed a lawsuit against the Nation. Mormons can not restrict Utah citizens to those who are descendants of Brigham Young or Smith, nor can Boley, Oklahoma restrict it's citizens to descendants of its original African-American founders by law. All citizens of the Indian nations possess dual citizenship, one with the U.S. and one with there respective nation.
As I promised on another post, I will compose the letter to my Congressional rep. today asking for economic sanctions that do not endanger the humanitarian needs of the Cherokee nation. Even though one of the proponents of the expulsion didn't want their health care dollars used to pay for the cost of a future heart attack suffered by a Freedman descendant, I'm ceretainly willing to have my money used to save the life of a full blooded Cherokee. Thats what I am talking about with regards to reason and logic.