In our culture, and I know you're going to hate me playing the cultural relativism card, that is ok. It is open for debate. Anglo-Saxon culture has a long taboo against words associated with bodily fluids and bodily emissions. "God's wounds" was a pretty devastating statement only a few hundred years ago.

But it really is ok to talk about illegal aliens. That is a topic of debate. It isn't PC to think that different ethnicities should be treated with respect. That's just good sense.