I certainly consider myself among the 71%. However, I think my views on the subject might differ anywhere from a little to quite lot from others who are also in the same 71%. The point being, that considering political correctness as "a problem" suggests a whole range of potential views on the subject. Some liberals think that conservatives have their own PC. and hence there may be some libs in that 71% who are thinking about conservative PC.
I think both sides have their PC, though I do think the left's PC is more common and pervasive. I view PC as taking what is fundamentally a good thing a little too far to where it can become difficult to have an open dialogue on numerous important topics. On balance, I'd rather have the downside of PC now then have the open bigotry we had 70 years ago.
PC is very much a generational thing. It's more popular among younger libs (<30) and less popular with older ones. My irritation with it probably stems from my age.
The ego is a defense against self hate, an imaginary 'I' created to be other than what one was put down for as a child. It is an identification to an imagined perfect standard, a box or prison of behaviors we create to imagine ourselves to be of the highest standards and morals over and opposed to the behaviors we had as undisciplined and bad behaving children. We are put in this straightjacket so that when we grow up we will not face the criticism of others, that we will be safely normal and proper in all the best ways.
Thus we become better than others by differentiation. We think properly and are better. They are not. We become bigots, Mini Nazis for our personal Third Reich. From there it's not to far down the road where we want the Jews to be gassed.
In this way we create an enemy who in turn makes an enemy of us. We create what we fear.
For years and years we have swung farther and farther to the right, toward this fascist other hating mental state. The result is that the right is in danger of creating a monstrous left. And by the same process that the Right created these monsters they will see them everywhere. The Left will readily see the monster in the Right, but not so easily see how they slowly become that same monster.
The only way out of this depressing descent into chaos is to learn to love monsters by discovering and acknowledging the monster in the self.
There is only love and we have all been forgiven. We feel we are worthless, but it is a factual lie, a belief and nothing more. a belief we built to save us from great pain, but which creates endless more pain for the new born.