I wonder if All Saints Day is too Catholic for them*. Look! Perfectly good Christian holiday at the same time of year as Halloween, and, in fact, part of the origin of Halloween. Heck, you can even play War on Christmas and try to say 'Real True Christians' need to reclaim All Saints Day from Halloween.

Also, anyone who can think of Jesus Ween without giggling may never have been a child in modern America. Hee, ween.

* Wikipedia tells me that some Protestant denominations (at least Anglicans and Lutherans) celebrate All Saints, with the understanding that without Purgatory, all Christians, dead and living, count under the 'saints'.