Elf labor is stolen

Elves are imaginary creatures who happily serve an imaginary entity whose soul purpose is to bring joy to children. It's really not that serious. If we really want to go down the path of being a petty, miserable asshole, however, their labor isn't "stolen". They get room and board. Being clothed, fed, and sheltered in the coldest place on the planet is pretty good payment.

All holidays should be happy

Okay? Aside from holidays commemorating tragedies, I don't think anyone would disagree with this sentiment. I don't know what point they're attempting to make here.

Christmas doesn't have to be white

Is this person stupid enough to believe that "white Christmas" has anything to do with skin color, or do they just have an aversion to snow? It's hard to give these kinds of people the benefit of the doubt.

Stockings are for all genders

All two of them. I do not know a single person who believes Christmas stockings are specific to either gender. I also do not know a functioning adult who believes there are more than two genders.

Carolers should be called Karens

Why? Just... why?