I don't see how that makes me racist. Some of them are from a poor culture where their cars are shit and they drive slow as hell and change lanes without a care in the world.
They're also some of the most hostile people I've ever had to deal with in retail. It's like some of them are constantly angry or behave in a way that suggests I owe them something. But it's only some of them. Others are just plain lovely individuals. But I think this hostility may be more prominent in the south, I can't be sure...
It doesn't mean I hate anyone based on the color of their skin. I hate people for the way they act and for putting my life in danger on the road (which that includes old people and people who text while driving).