If someone wants to give up dating due to their looks, age or genetics (that includes mental state) that’s a totally valid reason if you ask me. As long as it doesn’t translate to misogyny no one will get hurt. However a lot of people seem to be ticked off by this idea, why?
Well personally I think all people are secretly superficial in that regard. Both men and women, whether they’re aware or not.
That’s the problem, people are very diverse. Look around yourself for examples of couples (in real-life, not online), and I’m sure you’ll find many examples of “ugly” people of all genders being in happy relationships. I know a guy with a facial deformation in relationship with a beautiful woman, I know a seriously fat couple. The forever single people I know mostly have severe mental or personality issues.
That’s because that’s how you see the world. It’s hard for you to comprehend someone else not thinking the same way you do.