Wow. To struggle to be politically correct, I have to worry about words in order to minimize the possibility of someone - apparently anyone - taking offense, because I use words related to occupational, gender, racial, cultural, sexual orientation, certain other religions, beliefs or ideologies, disability, and age-related contexts.
Political correctness (adjectivally, politically correct; both forms commonly abbreviated to PC) is a term which denotes language, ideas, policies, and behavior seen as seeking to minimize social and institutional offense in occupational, gender, racial, cultural, sexual orientation, certain other religions, beliefs or ideologies, disability, and age-related contexts, and, as purported by the term, doing so to an excessive extent.
To put it another way, we must placate the fanatics in society - cater to anyone who might find offensive the mention, within the context of gaining some perspective, of their job, gender, race, culture, sexual orientation, religion or other belief or ideological structure, disability or age.
The only safe pronoun to use when referring to another human being is "it" but never with any adjectives. "The suspect was a human. It used a gun." The problem here is who gets to decide when adding any more information might be allowed? The most easily offended person or the person with thickest skin?
Can I say that "gee it's a surprise that the only eligible candidates for President in 2012 in the U.S. - that great Melting Pot - appear to be heterosexual married Christian males raised by white parents and white grandparents?" It's true, you know. Why, one might ask, except can you ask?
Is it wrong to say these words out loud because one or more might offend someone? If it is wrong, we have no way of talking about our politics, society, and culture. And to not be able to use humor to ease the difficulty of talking about these things is downright scary to me.