> And... unless you're in a marginalized minority group, you really aren't in a position to know how racist people are.

My experience is that people are more likely to share racist views with other people of their ethnic group but would likely never be overtly hostile to a person of a different race.

Also, I think if you are in a marginalized group it's extremely hard to disambiguate racism from general assholery.

If you don't get hired for a job you'll never know if it was because the interviewer was racist or because he just didn't like you