"we all have only one Birth, day. Each year after that is just an anniversary “" That is so correct. Like a wedding is once and then after that it is a wedding anniversary.
But the JW stance on birthday celebrations is wrong because: people in the Bible killed others on their birthday celebrations so that automatically makes such things generally wrong.
The Bible describes the devil as a dragon, so all dragons are bad.
The Bible says a serpent, snake was used by the Devil, so are all snakes bad?
What is bad is the generalization, the stereotyping. One thing bad, everything of that category is bad. is the opposite true? One thing good and everything in that category is good?