I remember those after-holiday sales on Easter, Christmas, and Halloween candy after the holidays. The Witlesses would usually take advantage of those sales. The excuse would be that the holiday is done.
Why can't they just enjoy things for what they are? Just enjoy the holiday candy, lights, and--hell, the whole nine yards! Who says you are automatically worshiping the sun if you happen to enjoy colored lights? And, that song--why not just enjoy it for the music and the beat, without necessarily agreeing with the message! It's just a song, and if the people weren't so damned programmed to believe anything that hints at demons, they wouldn't have any problem. Hey, I used to listen to that song in 1969, and I don't remember being attacked by any demons when that song came up.