This is of course my opinion, but i do believe that the pc has been overblown in recent years. The problem is not with people being insensative---it's with people being too sensative and looking for something to be upset about. There is a reason that you would imply that irish drink, or italians are mobsters, or that asian people run drycleaners-----that's becuase there has been a precedent set for that--ie there is a reason that everyone associates those different people groups with those things. In the same respect I rock climb, camp, work for adventure races, mt bike, ect... and a lot of people will hear that and think that i am a hippie (which couldn't be further from the truth). Instead of getting upset and pissed about it--i could care less what people think. If i get the chance then i will educate them---but i don't run my life around how other ill-informed people think about me.
We all know that all asians don't run drycleaners, irish drink, and italians mobsters-----but instead of everyone getting upset and making a stink out of it---and an issue where there isn't one. We can take the time to educate people and go on with our lives. There is a big difference between someone associating asians with drycleaners, and someone being racist-----------let's not blur the line!