Political correctness is still silly.
to assume there's only ONE holiday in December, is rather silly.
There's quite a few...
Advent: four weeks prior to Christmas (Western Christianity).
Saint Nicholas' Day: 6 December
Bodhi Day: 8 December - Day of Enlightenment, celebrating the day that the historical Buddha (Shakyamuni or Siddhartha Gautama) experienced enlightenment (also known as Bodhi).
Saint Lucy's Day: 13 December - Church Feast Day. Saint Lucy comes as a young woman with lights and sweets.
Winter Solstice: 21 December-22 December - midwinter
Dongzhi Festival - a celebration of Winter
Soyal: 21 December - Zuni and Hopi
Yalda: 21 December - The turning point, Winter Solstice. As the longest night of the year and the beginning of the lengthening of days, Shabe Yaldā or Shabe Chelle is an Iranian festival celebrating the victory of light and goodness over darkness and evil. Shabe yalda means 'birthday eve.' According to Persian mythology, Mithra was born at dawn on the 22nd of December to a virgin mother. He symbolizes light, truth, goodness, strength, and friendship. Herodotus reports that this was the most important holiday of the year for contemporary Persians. In modern times Persians celebrate Yalda by staying up late or all night, a practice known as Shab Chera meaning 'night gazing'. Fruits and nuts are eaten, especially pomegranates and watermelons, whose red color invokes the crimson hues of dawn and symbolize Mithra.
Mōdraniht: or Mothers' Night, the Saxon winter solstice festival.
Saturnalia: the Roman winter solstice festival
Pancha Ganapati: Five-day festival in honor of Lord Ganesha. December 2125.
HumanLight: 23 December. Humanist holiday celebrating a vision of a good future.
Christmas Eve: 24 December
Dies Natalis Solis Invicti (Day of the birth of the Unconquered Sun): late Roman Empire - 25 December
Christmas: 25 December
Twelve Days of Christmas: 25 December through 6 January
Yule: Pagan winter festival that was celebrated by the historical Germanic people from late December to early January.
Anastasia of Sirmium Feast Day: 25 December
Malkh: 25 December
Boxing Day: 26 December - Gift-giving day after Christmas.
Kwanzaa: 26 December - 1 January - Pan-African festival celebrated in North America
Saint Stephen's Day: 26 December
Saint John the Evangelist's Day: 27 December
Holy Innocents' Day: 28 December
Saint Sylvester's Day: 31 December
Watch Night: 31 December
New Year's Eve: 31 December - Last day of the Gregorian year
Hogmanay: Night of 31 December - Before dawn of 1 January - Scottish New Year's Eve celebration
Hanukkah: A Jewish festival celebrating the miracle of oil.