“Christmas is about Jesus, that’s why it’s called Christ’s mass”
No it isn’t. All historical documents found that mention Jesus’ birth point to April, May, January, or months other than December.
However, several hundred years after his supposed birth, Christian leaders decided on December, thereby hijacking existing pagan holidays.
Before Christianity, there were many reasons to celebrate in December. The Romans had Saturnalia and Natalis Invicti. At winter solstice, days started to become longer again, surely something to celebrate in the northern hemisphere. The Christmas tree was long considered pagan and denounced by Christian leaders. And so on.
Well, so what? These are all pretty unimportant historical details. But consider this: If Christians consistently lie about silly details like this, what else do they lie about?