I was half-considering starting a thread on this question but you've beaten me to it, OP.
Dh doesn't do much. He wouldn't do anything if I didn't tell him what to do, actually. I've told him what I want as a present, since he has a history of buying utterly random and useless gifts and it's safer to specify.
Other than that, he doesn't have anyone else to buy for (no family on his side), and we don't have dcs. So I do all the presents for him and for my family (and pay for them). I do all the organising, planning and pretty much all advance food shopping, and 99% of the cooking. Put up the decorations, since he wouldn't bother. This year we're having my parents to stay (think fairly frail, poor health, lots of hovering and worrying involved on my part), and I'm already feeling fraught.
He doesn't actively set out to be miserable/unhelpful but he doesn't really see the point of Christmas or indeed most things so simply doesn't think about any of it unless I issue massively detailed instructions on the most basic of levels, so it's easier/quicker to do it myself, frankly.
Oh, just remembered, he send Christmas cards to the people he knows. That's all he does off his own bat.
Yes, I know it's all wrong, but that was usefully cathartic, thanks 