If Lord's return is a bit different than we thought (flying out of here in literal isn't exactly what He meant) we would be ashamed for Him to return at Christmas; seeing us celebrate His birth same way pagans do. Christmas would/should never be same again.
When we consider giving gifts of love, do we think of pretty packages to go under tree or do we consider what Jesus would give; things like sharing gift of salvation, meeting a need of heart, reaching lost sheep? And, didn't He say that there would always be poor among us?
So, if it is Jesus' birth we're celebrating, shouldn't our gifts be to Jesus or on behalf of Jesus? If such a needed gift would come in a package, so be it. But, with Jesus present, there would never be a Christmas gathering to show off ‘our’ service.
Forasmuch as ye know that ye were not redeemed with corruptible things, as silver and gold, from your vain conversation received by tradition from your fathers; But with precious blood of Christ, as of a lamb without blemish and without spot: 1 Peter 1:18-19
It was God who first showed me how He felt about way we celebrate Christmas when I attended a church Christmas program wherein Santa was welcomed, but there was no mention of Jesus. My stomach ached and churned, and, soon, I thought I was going to puke ... feeling literally ill from head to toe.