Its nice you are actually considering the other parent, I would recommend using the season, to try and build a little bridge, and wouldn’t the chrisms season be a perfect time.
Its so hard when communication break down, because uhntimatlly the children do suffer. Propose alternative christmases.
But also you have to look at if the children may be with you this year but don’t mean it will be the same the next few Christmas , as it fulls on different days every year, unless you always to have your children on the 25th…..
Its never easy because one will seem to have the control on setting, I do believe court orders should be for a minimum, never a maximum, as it makes them harder in the future and have no flexibility.
Not sure if I have helped, but hopefully a little food for thought.