Agreed. It seems to me that many people (of all races) who try to vilify PC and insist "I can say what I want" don't really want to take responsibility for having said what they wanted. Yes, there are cases where PC has gone overboard and suppressed valid debate, but I don't believe that was the original intent, and there most certainly isn't anything wrong with suggesting that people think and reflect on the possible effect of their words before they open their mouths.
Re: not disagreeing, just adding...