Political correctness spans a whole host of things. Sadly, one thing it includes is simply being polite. So if you hate political correctness, just ask yourself if it is really politeness you hate.
They are not the same thing. I can disagree with you on a sensitive issue, and express thus while still being polite. Political correctness means never voicing opinions certain people disagree with.
Fun Fact: The term "politically correct" was coined by the Nazis. It was used in the context of a new law regarding the granting permits to journalists, and
the law specified that permits would be granted "only to pure 'Aryans' whose opinions are politically correct."
So, you're right: The Nazis certainly referred to "never voicing opinions certain people disagreed with."
Fast forward 85-90 years, and the term is now used pejoratively, as a way of condemning speech one doesn't agree with. It's flip side -- "politically incorrect" -- is also used as a badge of honor, by someone who wishes to say something potentially -- or actually -- offensive, granting themselves permission to speak under the guise of not cow-towing to silly liberal notions.
To take an extreme example, if someone asserts, "You should refer to gay men as faggots because it is offensive," that's not being "politically correct." It is, as Lois suggested, an encouragement to politeness. Yet many who deem themselves "politically incorrect" would object, labeling that statement a suppression of free speech, or an effort by the left to control dialogue.
In this light, it has little to do with respectful disagreement, or intelligent counter-arguing. It's simple polemical gamesmanship.
Aerosmith said it best in the song "Living on the Edge"
There's something wrong with the world today
I don't know what it is
Something's wrong with our eyes
We're seeing things in a different way
And God knows it ain't his
It sure ain't no surprise, yeah
Living on the edge
Living on the edge
Living on the edge
Living on the edge
There's something wrong with the world today
The light bulb's getting dim
There's meltdown in the sky
If you can judge a wise man
By the color of his skin
Then mister you're a better man than I, oh
Living on the edge
(You can't help yourself from falling)
Living on the edge
(You can't help yourself at all)
Living on the edge
(You can't stop yourself from falling)
Living on the edge
(Everybody, everybody)
Tell me what you think about your situation
Complication, aggravation
Is getting to you, yeah
If Chicken Little tells you that the sky is falling
Even if it wasn't, would you still come crawling
Back again?
I bet you would my friend
Again, and again, and again, and again, and again
Yeah, tell me what you think about your situation
Complication, aggravation
Is getting to you
If Chicken Little tells you that the sky is falling
Even if it wasn't, would you still come crawling
Back again?
I bet you would my friend
Again, and again, and again, and again
Something right with the world today
And everybody knows it's wrong
But we can tell 'em no or we could let it go
But I would rather be a hanging on
Living on the edge
(You can't help yourself from falling)
Living on the edge
(You can't help yourself at all)
Living on the edge
(You can't stop yourself from falling)
Living on the edge
(Everybody, everybody)
Living on the edge
Living on the edge
Living on the edge
Yeah, yeah, yeah, yeah...
Get talkin' to me
Living on the edge
You can't help yourself from falling
Living on the edge
You can't help yourself at all
Living on the edge
You can't stop yourself from falling
Living on the edge
Living on the edge
You can't help yourself
You can't help yourself
Living on the edge
You can't help yourself at all
Living on the edge
You can't help yourself
You can't help yourself
Living on the edge
You can't help yourself
You can't help yourself
Living on the edge
You can't help yourself at all
Living on the edge
Yeah, yeah, yeah...
But ultimately to me in my humble dumb meat brick opinion, I would like to know who is ultimately in charge of what is "politically correct/incorrect?" If you were in a crowd of 100 people and everyone agrees with you, except one who finds your rational debate absolutely offensive, do they have the right beyond any rights and freedoms to label you derogatory for expressing your opinion in your debate. To me the world is tip toeing on eggshells to avoid offending the one person, instead of trying to actually, rationally lay out the differences of opinions and are quick to condemn and close off any consideration. Politeness is important, but not everyone's opinion will ever be taken politely. Its like this:
If I think that humanity is advancing to its own demise, some will nod their heads, while others will be quick to condemn me for speaking what I consider a polite opinion.
But also I think there is a huge difference in being "Polite" to not offend, and the distinct lack of the practice of having Tact, to know what to say to whom. Being polite is important, but having tact is more important. I work with a diverse group of people, some who absolutely disagree with some of my opinions, but instead of having a melt down, we sit and talk it out, and in the end I learn, and they learn and we can be civil and agree to disagree. But no one has the right to tell anyone what to say or how to say it. It should have been taught since birth and forcing it on grown people who should absolutely know how to speak and act in a civil society is the biggest problem.
Also MissB, it dates further back to the Roman Senate where they had a strict code of ethical speaking where if you offended someone it could be a crime, despite most senate meetings devolved into shouting matches.
As John Locke wisely said, 'New opinions are always suspected, and usually opposed, without any other reason but because they are not already common.'