Christmas means different things to different people. There is no religious requirement to enjoy the season, indeed, many of the trappings of the Christmas holiday (Christmas tree, mistletoe, gift-giving, flying reindeer, Santa Claus, etc.) have little to do with one specific religion, and have their roots in several different ancient customs, celebrations and rituals.
I'm not a witch or a vampire, either, but I think Halloween is kinda cool.
I agree, many things have been redefined, muddled, or obfuscated to where their original role complies with modern secular traditions and/or superstitutions.