Political correctness is needed in order to have a civilised debate.
The argument
Respect and politeness are crucial in constructive debate, and this argument treats political correctness as the set of norms that supplies them. The point of discussion is learning from one another, which requires that each side believes the other is arguing in good faith and is willing to revise. Neither condition survives contempt. If offensive language is condoned in the media and in our society, ideas polarise very quickly. Language that demeans a person rather than addressing their claim changes what the exchange is about: the target is obliged to defend their standing instead of their argument, and the audience is invited to dismiss them rather than weigh what they said. Once that has happened the two sides are no longer engaged in the same activity, and the exchange can escalate — proponents of this position warn that debate conducted in these terms risks turning violent, because an insult admits of no reply except a further insult or worse. If debate is not respectful then there is no point in it. What remains once respect goes is two people trying to validate their own opinions, each treating the exchange as an occasion to be confirmed rather than informed, and neither open-minded enough to be moved by anything the other says. That is not disagreement being worked through; it is disagreement being performed. The democratic stake is what makes these norms necessary rather than merely pleasant. A democracy asks citizens who disagree profoundly to keep talking, to accept outcomes they argued against, and to remain persuadable. If we are not open-minded we cannot function in a democracy, and open-mindedness requires conditions under which people can actually hear each other. Because political correctness maintains the respect that makes real debate possible, it is necessary and useful in our society.
Premises
Counter-arguments
Political correctness doesn’t stop controversial ideas turning violent - censorship does. Political correctness merely softens the language used to express ideas, which in effect is not very significant
Rejecting the premises
[Rejecting P1] Respect and political correctness are not the same thing, and the argument never bridges them. Establishing that constructive debate needs civility leaves open whether a set of conventions about which words are acceptable is what supplies it — a discussion can be scrupulously correct in vocabulary and entirely contemptuous in substance. [Rejecting P2] The counter-argument on record disputes the causal chain, holding that what prevents ideas from turning violent is the restriction of conduct, not the softening of expression, and that adjusting the words used to convey a view leaves the view itself untouched. [Rejecting P3] The premise treats open-mindedness as a product of language conventions. Critics reply that the opposite risk is at least as real: where certain formulations are ruled out in advance, positions go unstated rather than unheld, and the exchange the argument values never takes place. [Rejecting C] The argument also proves less than it needs. Even granting that respect aids debate, that would show civility is useful — not that political correctness, as a distinct social practice with its own critics, is necessary.