Ask enough people about what kinds of music they like and you’ll get plenty of people who’ll reply with something along the lines of “anything but country and rap.” To me, that’s a pretty silly answer because both genres have a range of sounds and attitudes, at least some of which should appeal to most people.
Among these folks who don’t like country music, the one exception they’ll always cite is Johnny Cash. I’m sure you could come up with plenty of reasons why this one guy is acceptable, not the least of which being the treasure trove of excellent songs that he left us. One of my personal theories is that Cash’s rebellious “Man in Black” persona (the authenticity of which is not in question) fits in more comfortably with hard rock and punk than it does with the contemporary conception of what country music is supposed to be (an American flag wavin’, beer drinkin’, Ford Truck Man).
Whatever the case, look back at the country music that was produced by the contemporaries and predecessors of Johnny Cash and you’ll find something distinctly different from the stuff that gets produced nowadays. Patsy Cline, Hank Williams, Loretta Lynn, Willie Nelson, Merle Haggard and several others all made great contributions to the genre that are worth remembering today, even if they are forgotten by the folks who say they don’t like country music.