How can women 'smell low self esteem' and know to reject a guy because of it? Is it posture? It can't be because most bald guys have good posture; that's a component of most modern fitness programs. Is it the guy's voice and vocal tone? It can't be because most bald guys have been on the PUA nonsense websites and worked on their voice. Is it what the bald guy says? It can't be because, if you go out and try to meet women romantically, you'll see for yourself that they have decided whether they are interested or not after they notice you and before you start speaking. The only remaining conclusion is that the woman is a mind reader. It's nonsense. Nobody can smell low self esteem. The women reject a bald guy because he is bald. They don't hate him and they aren't bad people; they just don't find the baldness attractive.
Most bald guys try very hard and get no results. For example, I know guys who got no results on dating apps and went out approaching every week for months, and got no results. I personally didn't like approaching and believe in the dating services so I went for a good photoshoot to get good photos to use on the services. I also had no results. These may be stupid ways to try but guys like this aren't not trying. Coming on this website is the only time that they mope and complain. If what you said worked, the bald guys would end up having good lives and leave this depressing forum. That's not happening because living with baldness really is as bad as the people here as describing.
Like I said, I don't personally know any bald guys in my demographic and region who are as you described. If I found a guy like that, I'd befriend him and learn from him. But it looks like there aren't any guys like that.