

Same argument could be made for sweeping/vacuuming the floor or combing your hair. It will just get messy again.
This is not true, all of those things have drawbacks that not making the bed do not. Maybe never washing your bed clothes, sure, but just not making it is not the same as never cleaning your floors, or grooming your hair/body. If you don’t clean the floors, they get sticky, attract pests, build up bacteria, etc. If you don’t comb your hair it will begin to knot up, and cause scalp problems, if you don’t do the dishes they will get covered in bacteria, and mold, and attract pests. Not making your bed doesn’t have these types of consequences.
Heresy, the savior is Arch!