All it is is a way to alienate people from society at large. They cannot say "Happy Thanksgiving", "Merry Christmas", or "Happy New Year". People usually take offense when this happens, especially when they take the initiative and get a "Thank you. Have a nice day." as the answer. That rules out timidity or depression as the reason why the person cannot wish someone a happy holiday.
I don't really give a fxxx what they say about this anymore. They tell me not to, and I will go ahead and do it anyway. No matter where they produce printed articles in the litter-ature, I pay about as much attention to it as they program the members to pay to news articles that expose their pedophile protection fund. In other words, none.