Not that I am in any way a fan of holder, but..........
Who did he call a racist?
Where does he say anyone against him is a racist?
You're correct, Atty Gen Holder called no one in particular a racist - he merely implied that a reason for his policies being opposed so strongly is racism - you can infer what you wish. He also implied, but didn't state, that voter ID laws are racist moves to keep people not in power (whom he identifies as most likely Democrat voters of color) from voting. Again, you infer what you wish, after all he didn't actually call anyone a racist.