It doesn't matter if YOU don't think it's offensive. It's about how others think and feel about it. Are people really so self-centered that they can't understand that? And the slippery slope argument doesn't hold water because it's very obvious when a good number of people have a problem with it vs one or two people who are trying to be provocative. People are reasonable and if they are telling you something bothers them, it most likely legitimately bothers them.