To me, it doesn't matter much whether you call it Chrismas, Yuletide or even Winterval, as long as you recognise that it's no more a Christian festival than is Easter or All Souls/ All Saints. And that neo-Pagans really (despite much research) have much more than the vaguest idea of how what and even why the archaeoPagans celebrated these feasts.
I started a sceptic carol once but ran out after the first verse:
The rain fell from a sky of grey Above the cave where a baby lay. No choirs of angles sang his praise, No shepherds stood in rapt amaze. A fallen girl, her husband old, The inn was full, the night was cold, The dirty straw lay on the earth Where Mary gave her baby birth...