Why do people think forever alone women don't exist?

Whenever the topic is brought up, irl, on the internet, you name it. There's this base assumption that if you're a woman, you CAN get a man. If you're single that's only because you keep rejecting guys, it is a CHOICE that you're making. Making an atheist believe in God is probably easier than making someone believe no one wants to date a woman.

In the rare chances where people are very reluctantly willing to believe it, they instantly resort to: A) she looks like the lovechild of an ogre and a sewage monster, or B) she is absolutely abhorrent unbearable company with the most negative off-putting vibe known to mankind. Which is just an assumption that doesn't exist with men who are struggling with dating.

Also don't even get me started on the sexual part. A woman who gets rejected sexually by men is a mythical being, simply doesn't exist, every woman can get laid, at least according to 99% of the populace. In both genders, mind you.