Don't racialize this, please. It's not about Bush attending a "black" funeral.
If Clarence Thomas or even Barak Obama died, I would expect Bush to attend.
So have a lot of other people, but I wouldn't expect flags to be flown at half-mast upon their death. Nor would I expect the President to attend their funeral.
And guess what? The President more than likely will not be attending your funeral nor will any flags be flown at half-mast upon your demise.
Typically when a person who was somebody in their own right, their famous spouse gets mentioned as an afterthought, not as the lead-in.
That's very amusing because I think you enjoy racial division, or you wouldn't say things like "why can't Bush go to a black funeral?" when that's not the point and you know it.