Here's my unvarnished "offensive" non PC opinion...
I don't think the 'that one' statement meant a damn thing. I know of many people who refer to another person in the room as 'that one' when they disagree on a point of discussion, I have heard that expression used my entire life...and...race/color/etc has nothing whatsoever to do with it.
Furthermore, if an undecided black voter uses two words to make their choice that would be the dumbest $hit any person can do and we should seriously consider whether any person of that level of stupidity should be
allowed to vote in the first place.