Jw's can thank Judge Rutherford for this assinine interpretation of what the bible does not forbid.
In my familes photo album there are pictures of the Bethel family having a Christmas dinner, with all the decorations.
When the Judge stole the wtbs out from under the individuals Charles Taze had designated, he was very much aware of the almost worshipful attitude many Bible Students had for the 'Pastor'. It was his intent to eradicate all 'creature' worship from the org.
Of course this desire stemmed from the fact that he wanted this 'worship' for himself.
Once he convinced the Bible Students that he could 'use scripture' to back up all his assertions, the road was clear for what followed. Sheer dictatorship.
Knorr carried on the tradition, Franz only added a sense of mystery and prophetic apocalyptic fervor, to go along with all the 'core' beliefs (guesses, surmize, outright lies) voila! we have the modern day jw's devoid of the love and compassion for their own family member's milestones.......the day of birth. And many more silly rules and policies that all had their inception because of one man's desire for power.
Danny