I suppose most gift giving could fall under the category of chukas akum; after all, the custom of the world is to give gifts for almost any occasion; to name a few: baby and bridal shower gifts, and birthday gifts and wedding gifts, anniversary and holiday gifts.
In all likelihood, the goyim copied their December gift giving from the yidden, as almost all of their religious customs and rules have their origins in our own minhagim and halacha.
In some instances, the yidden did away with our minhagim since they were copied and practiced by the goyim.
It’s interesting that the children of intermarried couples are very machmir in this respect and while being totally ignorant of Judaism, they expect gifts for and their bar/bat mitzvah along with Hanukah (8) and xmas gifts.
But Chanukah gift giving got way out of hand long ago. Where is the kol korei from our Rabbonim? What happened to the teaching of sonas matonos yichye?
What is the best and least expensive gift a wife and husband can give each other and would be the most appreciated; some compliments and a bit of mutual respect. And I don’t think we need to worry that the goyim will be copying this too.