No Nick, I don't think everybody agrees that it's the people around us that make it a special time of year. I think some people notice what the word Christmas means aside from our own (nonetheless very special) celebration. I don't mean any offence and am of course glad that he takes the time to send this message, but just want to question his assumption of the common reasoning for Christmas celebrations. It seems to make religion just a thing which is tacked-on to everything else that goes on at this time of year, a viewpoint which I find concerning.
UPDATE: Nick Clegg also kindly featured, ahem, in my own Christmas message.