At the risk of stating the obvious:
I doubt any reasonably realistic observer would be at all surprised at the racist scum coming out of the woodwork.
And in any material sense its not 'racism getting a shot in the arm'. I wouldn't denounce that, just say its incorrect.
Their coming out a bit more onto the open is a predictable reaction. To be dealt with. And wary of. But not to trump it up either.
The vicious racists are going to react. But they are not the main perpetuators of racism.