Yes, Jesus is different, but we're speaking about His birth...His humanity and that is where I've drawn the comparison. When the bible draws a comparison it speaks to His humanity too. "He was tempted in every way, like us, but He didn't sin". This is speaking of His humanity as an adult, not as a baby. None of the bible writers, the Son or the Father said anything that would cause people to think that Jesus should be celebrated as a baby.
It is solely a tradition of men. God is not obligated to honour our feelings about "why" we celebrate christmas and He's not obligated to honour the traditions of men. Since December 25th isn't Jesus' birthday, it's even less likely that God honours the christmas celebration with His approval.