Can we just not have this stupid thing at all? Get it out of the diary. It can be just a 'day' and women therefore get it as a day off from the never ending crap.
IWD has been a thing since at least 1911 and i, for one, am very happy it exists. All jokes aside about "yes, the other 364 days a year" - in Berlin it is now a Public Holiday and in many eastern European countries it is a day when men acknowledge women's contributions to society, at home, in the workplace etc and it is very jolly and lovely.
My local car parts place does an IWD special and women get 15% off - i usually use that day to get my lights checked/replaced and new windscreen wipers if needed. It is a small nod to us.
You can ignore it if you like, it is no skin off anyone's nose, and joining in or doing anything at all to acknowledge the day is not compulsory.