What normally happens is as follows:
1) Person A states view X.
View X will typicallly correspond to one of the following categories:
a) Willfully offensive and clearly abusive
b) Ill considered remark made in jest without regard to the consequences
c) Crass generalisation born from ignorance
2) Person B will say to person A that View X is innapropriate, citing a-c above as appropriate.
3) Person A will loudly declare that they live in a police state and it's political correctness gone mad if you can't go around being needlessly offensive to people without some PC fascist oppressing them and making their entire way of life redundant by saying something like, 'Oh, I say - that's a bit off.'
4) Person A will dredge up multiple instances of largely fictional, but in any case isolated, instances of jobsworths being over the top and declare it the every norm, and furthermore will convince themselves that there is a sinister cabal of PC Police out to get them and infringe on their typically white, middle class, heterosexual lives because, after all, they are they most discriminated against part of society, despite the fact that this is patantly not the case and utterly absurd. Good examples include: 'Winterval', 'Black boards' and 'Manholes'. These will be repeatedly shared with others of the same view until frothing appears at the mouth and annual holidays to Daily Mail island all round. Richard Littlejohn declared national saint.
5) Person B will then get on with the business of not wasting the precious gift of life on trivialities.