POLITICAL CORRECTNESS

I've just been watching the highbrow television show that is "Hell's Kitchen" and witnessed a debate between two competitors about "political correctness".

Ug. I hate that phrase. It seems to evoke great passion among those who'd rather cling to their bigoted beliefs.

When did it become wrong or irritating to "love they neighbour as thyself" or to treat people with dignity & respect?

Answers on the back of a ethnic background/sexual preference/religious belief form, please...