I'm a woman. Here's my reasoning.
I worked janitorial jobs for almost 10 years, in various settings. Banks, doctor's offices, businesses, gas stations, etc. The women's restroom was always, 100% of the time, nastier. Things in the toilet I can't even begin to describe. Toilet paper everywhere. Poop on the walls and the seats. Spit and make up on the mirrors. And blood on everything. All the time.
In ten years of cleaning for a living, the grossest thing I saw in a men's restroom, was poop stains in the toilet. I worked for a million dollar company, where everyone dressed up. And had money, and the women DESTROYED their bathrooms. Sometimes I wasn't even sure the things I saw, came out of humans.
Secondly, the grossest cars and bedrooms I've been in, were women's. In female friends homes I've seen rotten cheese under the bed, curdled milk on the nightstand. Dirty streaked underwear on the floor, dog shit, used condoms, and more.
I've never seen worse than dirty clothes on a man's bedroom floor.
Women are far nastier than men.
there doesn't seem to be anything here