So I assume then if a couple of guys in white sheets and hoods are standing around outside a polling place with night sticks shouting racial epithets at any blacks that happen to walk in all is good as long as the blacks continue to go in and vote?
You missed the whole point. The government did not say they did nothing wrong, just that they did nothing that would get a conviction. Big difference. While the the injunction may not be much, at least its something. And apparently there was not much evidence they were bombarding people with racial epithets either. And while destestable, people have done this and worse at polling places.
The color of the people don't mean anything in reality. As I mentioned what happened in 2004 under the Bush Administration. Name calling is not necessarily a crime. I am not defending these guys at all, but this idea Holder and Obama did not prosecute because they are black is insane. Remember Obama refused to meet with Farrakhan and rejected his endorsement. OB hasn't shown at anytime he likes the muslim radicals.