Not sure about you, but I'm going to head to my relative's house, catch up with family and eat cookies shaped like Christmas trees and candy canes.
You don't need to worry, the world will keep on spinning as it has for years upon years and it will continue to do so in the same manner for years upon years to come. So put any concerns you have back on the shelf and enjoy the festivities that come around, as they were originally Pagan, as we all know.