I enjoy CHRISTmas trees, CHRISTmas decorations, CHRISTmas cake, CHRISTmas pudding, CHRISTmas presents, and CHRISTmas spirit. If you want to put a (momentary) damper on my CHRISTmas cheer, just salute me with, "Happy Holidays", or "Season's Greetings", because I find that offensive, and derogatory.
Don't be afraid of offending someone with the Truth this CHRISTmas season--greet them with a hearty, "Merry CHRISTmas!", and you'll not only be refusing to take part in the denial of the Lord in our lives, but you'll be spreading and re-inforcing the Word, and that carries Heavenly reward.
Jesus is Lord. CHRISTmas is about Him. It's not called CHRISTmas for nothing!
If you, in turn, are offended by this post, then you are missing the core message of John 3:16. Read it and hopefully a spiritual seed and awakening will take root in your life.