Study on men who are chronically single showed the common denominator: having extremely low confidence. Now that I think about it, this post corroborates the target profile of negging by abusers-- victims who have low self-esteem.

There are, for the lack of a better word, not so good looking men or short men having relationships, in one form or another, with ridiculously good looking women because these men have confidence without being too bragadacious. Of course, there are shallow women who go for looks alone (same as men), but there are just as many kind-hearted and less shallow women who prefer men with personality over looks and vice versa.

Low confidence and self-critical thoughts are what impedes chronically single men. Sometimes, it is indeed on the state of mind. And this vulnerability of lonely men is exploited by manosphere to create incels. I don't have a solution to address the problem but this is a general observation.