Well let me be clear. My purpose in that post was not to attack political correctness. I reacted angrily toward political correctness after the fact merely because I felt it was being used to distort the true meaning of my original post.
And in case there is anybody who still doesn't understand the meaning of my post, here's a simplified explanation. Philistine is not a racial slur. I provided the "n-word" as an example of something that is a racial slur to show differentiation between the two, and to say (in my intentions anyway, I suppose I could have made this part clearer but I didn't anticipate the big backlash) that one is acceptable in jokes and humor (philistine) and that the other is unacceptable (the "n-word").
In retrospect I understand both sides of the argument, and I should definitely have not spelled the word out. Now can we please let it go.