Well, then they can all hide indoors for the month ala the ancient Incans and the rest of us can create some sort of new sort of month long Saturnalia/Yule/Wint

Well, then they can all hide indoors for the month ala the ancient Incans and the rest of us can create some sort of new sort of month long Saturnalia/Yule/Winter Solstice remix. We could even send a Krampus to go rattle their doors and windows on the appropriate day.