I can totally understand where you are coming from. I have those same memories, and, not to rub anything in, I am building those same memories with my own family. Christmas morning I wake everyone up with the same list of songs we've been playing for 16 or so years. Everyone sings along while we all do our various tasks - make breakfast, build a fire, heat cider, etc. It's just a magical time, and if that was denied me I would be so crushed.
Again, this is not meant to rub anything in, it's meant to convey to you how sorry I am that you're experiencing that. I can only imagine how difficult it is.
On the plus side, your kids love you. And that's no small thing.