Yep. It's the male equivalent of a woman that's morbidly obese.
I have a weak chin, but when I was a teen instead of fixing it with lower jaw surgery the fucking orthodontist extracted teeth and put headgear restricting growth of my maxilla. Not even a chin implant can do me any good.
I recently got told by an Orthotropist (will post experience soon) that if it wasn't for my bony projecting chin, since I have a recessed mandible, that it would have been legit game over for me.
I've come to the conclusion that a weak chin may be the single worst feature a male can have. Everything else by itself can be countered or an example found where the person is considered attractive or not subhuman. But a recessed chin is instant game over buddy boy tier, nothing else will save it but surgery.