It was more than one person, and included me. The remarks were in regards to being ignorant, uneducated bigots... which were all insinuated by the term "redneck". Many guys that hunt, fish, etc will joke around calling eachother rednecks or hillbilies. So it wasn't the blanket use of it that was offensive. It was the fact it was being used as a description of someone that is bad person.
It's all in the use of the word. Don't believe a word can change connotation with it's use?... walk around south Chicago and wait to hear the "N Word" being used. Then (assuming you're caucasion) go up to that guy and use the "N Word" in a negative light. Even though they just used the word themselves, see how that goes for you...
disclaimer - before someone loses their shit and acts like I am comparing the severity of "hillbilly" to the "N word", i'm not insinuating that at all. Simply using an example that is very clear to everyone.