Roll on fifteen years. Your DD has a child: your grandchild. You have just discovered you are suffering from a terminal degenerative disorder.
You have asked your daughter to come to you for Christmas, because you know that whatever may happen, this is likely to be the last time you can have anything like a normal time with her.
She agrees initially, but then calls back to say her husband is sulking, threatening to misbehave to ruin her Christmas and yours and that of your grandaughter if he doesn't get his own way about how he wants Christmas to be.
What would you want her to do? Would you want her to be with someone that cruel?
You can only make this decision once. You have this one chance to do the right thing for and with your parents. Don't take him along. He has already told you he intens to ruin it.
If he choses to try to mend the relationship, then you will be in a much stronger position. He will know that sulking and threatening to get his way doesn't work with you. If he chooses to go, you will know he didn't really care as much about you as you do about him, and that might be hard to face, but it is the reality.
I finally stopped giving in to my husband's sulking. We're still together. Ypu are teaching your DD, she is learning from you. Grab your courage in both hands and do what you know is right.