I think people are more offended by being mistreated by their "own".
Mistreatment is all over. We are all human and have a concept of the way things should be in a culture. When someone steps outside that boundry in the cultural sense. The people of that culture are actually wondering if that person is following their guildline. Sad!
Like not being deaf enough or being black enough or gays that don't act gay enough.
Like for example.
"you might be a redneck if..."
Some say you don't meet their criteria of it. It is discrimination within the culture itself.
Mind boggling!!