Yes, and that was in the past. Things change, people get riled up and want to participate more. There is no certainties in politics of this nature.
Also, it is not an alternative universe. Did Hillary not have the election in the Bag with all of the polls giving her +10% over Trump? What happened with that? You assuming that White people can not decide to participate, or that other ethnic groups can not change their participation rates is naïve at best.
I don't even know what to make of your quick willingness to accept the narrative that her loss will be the fault of Black men in Georgia not supporting her. I have no clue how you would think that is the main determiner of her success, when there are so many other variables in place that have an effect on the election.
How about instead of brow beating those brothers down there, they actually offer policies that will get those brothers excited to get out and vote? How about they look within themselves and figure out why they have such low participation rates among the electorate, instead of just trying to nag Black men into voting for them?