I'm sorry I don't agree, I think it depends on how intelligently it's pitched to people. Pitch something intelligently enough and you leave them no room for maneouvre without looking like ignorant philistines.
The thing is, despite silly publicity to the contrary, you CAN still have black coffee, most black people have no objection to being called "coloured" as long as the speaker is speaking in a respectful manner etc etc etc.
The Pc brigade are only as powerful as anyone cares to allow them to be. Most black people are secure and savvy enough not to get upset at non-offensive trivia, and are usually quite p1ssed off that some white do-gooder has decreed what they should or should not find offensivewhen they clearly have no personal experience. I have personally never come across any of this politically correct sh1t in my life and I've lived and worked in London, liverpool, Manchester etc etc and never had any problems with any members of the community there black or white.
The Daily Mail etc stir all this nonsense up, you could call it the MOWO's and not get any critisism for it as long as you didn't pitch it as an backlash against what you clearly perceive as the racism of the MOBO's, it's only then it becomes offensive..