Why is it that the only season of greetings happens to be the Christmas season? No one ever says happy Summer or Merry Spring!
Answer: the birth of Christ!
Happy Anno Domini MMXIV!
Hanukkah is a Jewish feast commemorating the re-dedication of the Temple of Jerusalem; which, since the Roman destruction of 70 A.D., no longer exists! So, instead of the birth of the Son of David, in the city of David (Bethlehem), the King of the Jews, the Son of God (viz. Christmas) you celebrate His Temple that no longer exists? Sounds like a time of mourning rather than any cause for celebration. For Jews to be happy at the thought of Hanukkah would be like Americans making merry on 9/11!
Kwanzaa is an modern political invention with no religious roots whatsoever. It's inventor, Maulana Karenga, created it in the USA in 1966 in order to contradict Christmas!
So, in this Season of seasons all of the lights, music and mirth is entirely a testimony to Christ's Birth. Face it (Him), accept it (Him), enjoy it (Him). Merry Christmas! Jesus Christ is God, the son of Mary, the perfect Jewess, and protected by Saint Joseph, the perfect Jewish gentleman, Guardian of the Ever Virgin Mother of God and of the God Child of Bethlehem. Salvation is from the Jews! Jesus, Mary and Joseph! forever.
...and the world will scoff, deny it, and try to quiet and ignore it. But the lights and the music goes on all in celebration of the King of Kings and Lord of All.