Political-correctness is a very notorious method of conversation that, when used in argument, strips away free speech. In my opinion, it is for people who cannot think, and force politeness upon others.....NOT that politeness is bad by any means, but always correcting someone's way of communication is actually quite annoying.
The reason PC'ness is for people who can't think is because they refuse to use & accept the original word for various sakes. Although PC'ness is a polite form of conversation, it shouldn't have to be forced upon others, especially considering this nation's founding principles like free speech. Unfortunately, political-correctness is a very common element used in various arguments, such as stereotyping people, referring to a person's ethnicity, etc.
Overall, political-correctness is the biggest excuse since canned cheese.
War : Campaign (at least in an American sense)
French Fries : Freedom Fries
Tall Man : Man of Height
Fat Man : Man of Mass (or something like that)
Thug : Mean Person, Socially-Challenged
Retard : Mentally-Challenged
Blind : Visually-Challenged
Chinese : Oriental
Japanese : Oriental
Korean : Oriental
Oriental : Asian
Indian : Native American
Native American : (use tribe name)
Black : African-American
African-American : (n/a but still regarded as offensive)