Why is calling someone a rascist and dismissing them so much more fun than having a intelligent conversation ?

"The imposition of PC has no logical end because feeling better about one’s self by confessing other people’s sins, humiliating and hurting them, is an addictive pleasure the appetite for which grows with each satisfaction. The more fault I find in thee, the holier (or, at least, the trendier) I am than thou. The worse you are, the better I am and the more power I should have over you." Is this quote better?

@ianR0ckwell An unattributed quote about what may or may not apply to this situation, devoid of original discourse?

No, not better.