Any normal human being, and this of course excludes Dummy Kylie immediately, would move heaven and earth to be with a dying father at what appears could be his last Christmas.
For MiniMan, it's an inconvenience and there could be complications with other family members coming by and HE wouldn't be the center of attention and they might not want to be on camera. He also can't afford it and the parents would have to pay for him to come and that would include Ca Sey. He won't let her stray far during the upcoming holidays, especially to spend time with her own family.
_____ That also brings up an interesting Thanksgiving coming soon. Supposedly NurseFatback and JamesTheGiantPeach are going to show up in Orlando instead of time with their own parents. I'd be surprised if the parents don't come down if GER can make it (As an aside, I still wonder how sick he truly is....but that's another story.) and the Dumb Dwarf will take credit for bringing them and his stans will faint with joy and tell him how wonderful he is.
Further, I was shocked/not shocked when the midget was in CA to crash that wedding of people he didn't know, that he didn't stay and go to Disneyland. But, alas....he'd be ~gasp!~ ALONE! Staying alone in Anaheim without a chaperone? Unthinkable, I suppose. After all, he's only 31 years old.

Plus he's broke, would be like a stranger in a strange land in Anaheim,

and would have to get to the airport all by his widdle' self. Never was going to happen, not with oar' pussyassbitch Kylie.