Alright, HP: the main thrust of your point is taken.
I do not agree, and would not say, that the President has "renegaded" his mother and her parents.
He has said some moving things about his mother, on the record.
He just does not want to make an issue of it, to which I say, "Fine. After all, you, POTUS, are the one who ran for and was elected to the office, not your family."
Let others in the media say what they will.
I am in Col. (eventually Gen.l) Chamberlain's camp.
I do not think it matters to America who your father (by extension, your mother) was - though this is different from the crucial point that one have a father and a mother, who are such before and beyond the grip of the state, but I digress...
Yours strikes me as a personal dig that 1) does not stick and 2) distracts from your main point, with which I agree, if it is as I have understood it: that Martin Luther King jr's vision of and program for achieving racial harmony is the right one, and that the is demonstrable from within America, herself.
Let me post the following, again, for our edification and delight: