So many opinions, many of which I absolutely agree with. But, this wouldn't be the internet if yet another bit of server space was used for yet another statement would it?
For me and mine Christmas has evolved as we have changed. We are now a lot more tolerant and appreciative of other people's faith and belief than we were as kids. This is due in part to more education and to a much more ethnically and racially diverse society in which we live. Also, as we have experienced the tragedies and joys of life we have definitely lost the "candy store wonder" part of religion. Besides, most of the celebrations are, as has been posted, adaptations of other traditions.
Part of the evolution for us has been the divisive actions by religious groups and churches. As a result they no longer have the leadership role they once did. That has left us free to make up our own minds and to celebrate as we see fit. After all most of what has been said is based on Faith. Faith is ultimately something that cannot be proved but is strongly believed. As such mutual respect goes a long way.
Oh yes, commercialization. I decry it because in our society it seems an indispensible part of our economic structure is buying things. From the increase in self-storage structures I wonder how much of those things are ever used.