I can say this as an absolute fact. The constant publication of these groups in the media has certainly led to them becoming more prominent. Prior to this year, the KKK was something I read about in my history books and laughed at while watching "Oh Brother, where art though" (or whatever the George Clooney movie was). I knew they still existed, but they were never in the news. All of a sudden, its in the media at least weekly.
To steal one from a Corral poster, "deer lowered"! Hell, I thought the bitch staggering and falling was bad, but the turkey gobbler** neck wins, cankles down.