Well then, I demand more gifts. I haven’t gotten squat over the last few years, and it’s really starting to piss me off. Get a move on, people! 
As for the OP…get over it.
I wish my friends and family a Happy Holiday season, simply because there are so many holidays celebrated this time of year. And there’s just nothing wrong with acknowledging the fact that all of them exist.
If you want to wish someone a Merry Christmas, go ahead. Happy Holidays, fine. Or, as I’ll be saying to my Jehovah’s Witness colleague, “Have a nice break, and I’ll see you Friday!”
Fact is, the holiday is upon us, and while you can be as pissed as you want to be, it isn’t going to change. The Christians aren’t going to stifle the non-Christians. The Pagans are still going to celebrate Yule, the Jews are still going to celebrate Chanukah (which just happens to fall during Christmas this year–the date does change from year to year), the athiests are going to do whatever they want, and the merchants are going to do their level best to make a buck off of everyone, regardless of which holiday they celebrate, if any.
If you want the holiday to be more Christian, well, listen to what others here have already said. Do something more Christ-like. Sure, the media and the merchants try to push stuff on you. But no law says you have to do what media and merchants say. You own yourself. Celebrate the holiday as you see fit. And if rebelling against convention and not buying into the media blitz is what you want, then don’t, dammit. Tell your loved ones you don’t want gifts. Give your time to people who need, for whatever reason. Or go to church. Or follow the OT and pray quietly and alone.
Me? I’m a pagan polytheist. I’ll be spending Christmas Eve with my family. Let me tell you what that family includes:
My soon-to-be ex-husband, who is Pentecostal.
My brother, who isn’t anything, his Catholic wife.
My sister and brother-in-law, who currently aren’t practicing anything, but my sister was placed for adoption at birth and raised by a Jewish family
My mom and her life-partner, Mike. Mike is Jewish, and my mother is in the process of converting. Mike will be bringing his menorah to dinner, and at some point during the evening, he’ll be lighting it and we’ll be listening as he sings his prayers.
Several children, all under the age of six, who don’t yet give a hoot about religion and are only there for the presents.
In other words, Jesus isn’t the only reason for the season. There’s an assload of reasons, and Jesus is just one of them.