Basically our Christmas has been secularized, with respect to public display. Christmas trees - secular. Santa Claus - secular. Christmas lights on houses - secular. Gift-giving - secular. Silly movies like "Christmas Vacation"; "Christmas with the Kranks"; "The Santa Clause" - all secular.
Almost all the Christmas music played on the radio such as "Jingle Bells", "Jingle Bell Rock", "Grandma Got Run Over By A Reindeer", "Rockin' Around The Christmas Tree", "Do They Know It's Christmas", "Happy Xmas", "Holly Jolly Christmas", "Rudolph The Red-Nosed Reindeer" and scores and scores of others - all secular.
So what's the beef?
I have no issue with Hannukah (or however you choose to spell it) with all their Menorahs and Dradles and their Adam Sandler songs and their "8 CRAZY nights". Bring it on! Bring it on! I'm not offended in the slightest.
I have an idea. Why don’t Jews do a outreach Hanukkah dinner. Invite a Christian over for a Hanukkah meal and outreach to them why you do what you do.
Then maybe, that Christian (or Christian family, couple, etc..) can do a Christmas dinner the next year with a little bit of dietary consideration.
I attend a low keyed shooting competition, campout, drunkfest, and BBQ where one of the guys keeps Kosher. Not a problem says we, the next year we created Kosher versions of nearly everything we cooked. To include being prepared on completely separate grills.
Since I was a kid my favorite Christmas song...BY FAR...has been "Little Drummer Boy".Almost 60 years later it can *still* bring a tear to my eye.Not all all secular.But your point is well taken,Christmas is far,far,*far* too commercial.