I’ve attended Christmas services every year of my life, always in a church, never at the state Capitol, courthouse, or city hall, so your argument is fallacious in that regard alone. Then there’s the motive of the satanists, which is all about confronting Christianity and not about celebrating a legitimate religion. And lastly, there’s the secular objective perception of satanists as human eyesores, except by freakish abnormal people.
BTW, why are leftists always so eager to white knight for the prince of evil?