Like Larry, I don't think that most black voters will be affected by any stance of Obama. Some will, but probably not many. We can only hope. For that matter white or Hispanic Obama voters from last time will probably not be affected by much he says or does.
The worst thing us anti-Obama folks have to worry about is the "none of the above" conservative voters staying at home or voting 3rd party. That is just as indefensible and illogical as Blacks voting for Obama no matter what, since it obviously contributes to Obama's success in the election coming. We can only pray that an offsetting number of likely Obama voters will become complacent and fail to vote.