Man I'm lucky I'm not around people like that anymore. The slurs are really the icing on the fecal layer cake. Not that it helps, but I think their racism is just a derivative of their worldview.
- I and people like me earned our money through hard work
- Ethnic group G has less money than mine
- Therefore, "they" don't (or can't) work as hard as "us"
Again it seems that first pillar is doing all the work here. But attacking that means attacking their class position, which many are not surprisingly reluctant to do.