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.
That’s what we are doing. Introducing Christians to Hanukah.
I tell them that the Christian Bible does not once mention “Christmas” - but right there in John 10, it has Jesus celebrating Hanukah.