I'm Assyrian "darlin". For over 1800 years my people have been Christian. We never had tress or yule logs or human sacrifice this time of year. When my people came to Western nations, they took part in the sanitized Christian version of the Holiday. It is nowhere mentioned in the Bible, but then again it's not forbidden either. Putting up "Christmas" trees doesn't make one a heretic. Dancing around an evergreen while burning sacrifical victims alive does though. Getting wasted while partying with your friends doens't make you a heretic. Getting wasted, while engaging in group sex, and praising Saturn does.
It's also not required that anyone get drunk, participate in group sex or sacrifice humans to enjoy the season.
I respect your personal beliefs but I find your attitude towards others most un Christ like. May I suggest you spend more time comtemplating the reason you celebrate this time of the year?