Granted, neo-Pagans, Wiccans, etc. tend to be nice, nature loving, peaceful folk, but the idea that the Yule had much in common with Christmas ais pretty silly. The sparse documentary evidence is that Yule was marked with a pretty bloody sacrifice of animals, blood being splashed around on statues and the such. And in some places, Uppsala for example, every nine years or so, those sacrifices would include human beings, nine of them. If the sins of the Christians during that period count, surely those of the Pagans aren't excused. You can hardly say that there is some tenet of the Pagan morality that was being violated at the most basic and fundamental level by those sacrifices, by the priest class, often in the interest of the kings' success, especially in war. Note that the burial where this tapestry was found included "two ladies". I assume they were killed by some priestess or priest, as is documented by the rare eye-witness account of Ibn Fadlan, so they could be the concubines of some high up thug in the afterlife. You can point out that all of the combined sins of priests, hierarchs, "Their Most Christian Highnesses" etc, were violations of the teachings of Jesus and his earliest followers, those who heard those teachings from him.
Reposted from last year
Update: While the internet is disappointingly useful for white supremacists, other species of Nazis (quite a number of them fans of the Pagan tradition mentioned above) and fascists, bigots and haters to organize and recruit - and none so much as the commercial merchants in hatred, objectification and enslavement, pornographers - it is also useful to evaluate how truly horrifying the misinformation that all of that relies on is among the so-called educated class among us today.
One of the more innocuous manifestations of that is the widespread belief that Christmas was, as one atheist hate merchant I ran across online put it, stolen by the Xians from those poor put upon Pagans. It always does my heart good to see the CSICOP set standing up for the witches, astrologers and necromancers, making common, though temporary cause with them before they denounce them as superstitious idiots, as well.
My friend RMJ has done some explanation of why that is hogwash that was pretty much the invention of, not Pagans, not atheists, but Christians in the form of anti-Christmas Puritans. Apparently that atheist "meme" was stolen from Christian Calvinsts by the atheists and the online Pagans. I have mentioned that the internet seems to generate quite a bit of irony. Since that tripe is a seasonal dish served up this time every year by the history-challenged, research averse Brain Trust of anti-Christian mid-brows, its refutation is bound to become an evergreen, appropriate to the season.
Read RMJ on the topic, his work is quite good.