Now you have.
Christmas can - and I simply can't over-stress this - fuck right off.
Pro tip: talk to child-free people estranged from their parents and/or siblings. High chance they want nothing to do with any of it, likely because it dredges up unpleasant memories (which frankly stand a good chance of also being the source of their eschewing of religion).
Rather than having to buy gifts other people don't want, and pretend to be happy about receiving the same, I just buy the things I want when I want them, and encourage those around me to do the same.
I will add that it's not helped by living in the southern hemisphere, where a bunch of misguided people insist on emulating northern hemisphere traditions, making everyone around them miserable by serving a three-course roast dinner in the height of summer.