Why do you think that the Christmas period is ‘sacred’? Genuine question.
I don’t think you mean in a religious sense (even if you did, a devout person would want to go to church more often, but that’s about it; no stipulations on the movements of family members).
Have you been brainwashed by department store Christmas adverts into thinking that the entire period between Christmas Eve and New Year’s Day must consist of families staying together, beaming beatifically at each other by the light of the Christmas tree?
Have you always thought like this, or is it the birth of your daughter that has made you think that your family should behave according to this template?
If so, step back. You’re making a rod for your own back...and your husband’s! Seriously, stop thinking that you have to behave in a certain way. You don’t. I really like Christmas but if my husband got a chance to watch Man United play, from the director’s box, on Christmas Day (I know that your DH’s offer is for Boxing Day, and that no matches are played on the 25th, this is just an example), or my my birthday, or our anniversary, I’d encourage him to go.