Express your displeasure with the usage of the swastika by some Americans and discuss the importance of recognizing the distinction between Nazis and certain subcultures in America.
I don't know how many genuine "rednecks" you actually know personally, but many of us who may fit various definitions of that term had fathers, uncles and grandfathers who fought the Nazis for your freedom, and we are genuinely offended by any American idiot who would wear the swastika or wave a flag with it.  Equating Nazis with Southerners and/or rednecks (Southerners and rednecks are not necessarily the same thing) is a mistake of the ignorant.