I know it is ridiculous. Yet I do feel strongly! When I've had to have a starter before Christmas dinner, I feel really miserable. It does ruin it because I can't enjoy my main course like I would otherwise.
I suppose Christmas is stressful and the food is something to look forward to. If some numpty insists on doing it a way you hate, it can give you the rage!
My mum's christmas traditions are set in stone. Thank god I've long since stopped going to her, it was awful. I still shudder at memories of childhood/teenage christmases with the miserable, cracked and dirty old "best china" being wheeled out to hold 17 varieties of veg, different ways with potatoes, sludgy tasteless bread sauce and nasty gravy. It didn't matter that it was all freezing cold by the time you could eat it - what mattered was that ALL THE REQUIRED TYPES OF VEG AND SAUCE WERE PRESENT!
She still makes dozens of absolutely vile, bitter-tasting, dry, rock-hard christmas cakes and puddings in about May and tries to foist them on everyone she knows, even going so far as to post them abroad, her poor friends. We have tried and tried to get removed from the pudding list but we always get one. We have to ceremoniously dump it in the bin.
There is absolutely no possibility of her ever, ever considering making these things a different way or trying something new. The fact that they are revolting matters not. They are RIGHT.