So many historical determinists in this thread. Christmas, American Christmas, is not some eternal god ordained holiday that claims permanent and total hegemony over the globe or even just in America. Sure, the connection OP makes between irreligiosity and less celebration of Christmas is an erroneous one, but can none of you even begin to fathom how Halloween might become a bigger holiday than Christmas? As Halloween is, I don't see how it can become bigger than Christmas. It doesn't need to become some sort of Christmas-esque holiday to usurp it like a few posters have suggested, but it needs to have broader appeal and deeper cultural connotations that OTL Halloween does. Halloween today is mostly, although not exclusively, for children, and it needs to be just as appealing for adults as well to begin to challenge Christmas. Further, Christmas, while significantly secularized today, has a strong connection to Christianity. Halloween has a general connection to horror, the dead, and whatnot, but in terms of culture, that stuff is small potatoes compared to the 800 pound gorilla that is Christianity. You'd need to either increase the number of things Halloween connects to culturally to try to even that out or introduce changes to the culture that gives the stuff Halloween is associated with more significance.
