Dec 25th was the birthday of Mithras. The Catholics used it to convert the pagans. There is no evidence that the Christ was born on that day.
You said there is no evidence the Christ was born on Dec. 25 and you are positively right. He fulfilled three of the major Feasts (Holy Dates) of Yahweh, and He was born during the Feast of Tabernacles - which is observed between September and October. Messiah "tabernacled" among us". He will return on a Feast of Trumpets, and things will really be under His good authority.