The crux of the problem lies between the ears of each bald or balding man who perpetuates a victim mentality for what is a relatively mild condition that a large proportion of the male population experiences. And yes, I said mild.
The resentment, self-pity, self-loathing, defeatism, delusion, blaming, et al. are mental constructs built on the foundation of anxiety that many men feel when they catch a glimpse of their fading hair. That initial feeling of anxiety can't be controlled. However, situations that produce the anxiety can be avoided by taking a few simple steps such as removing mirrors from the home or wearing a hat. But far more importantly, the self-defacing thoughts that can accompany the onset of anxiety can be avoided; unless you want to argue that you are not in control of your own thoughts, in which case you truly are insane and should seek professional help.
Having put myself through the grinder throughout my 20s - back when I had a lush, thick and full head of hair and more youthful good looks - and now enjoying a rich, fulfilling and exciting life at 32 as an NW4 I wouldn't even consider trading spots with my younger self.
Those who ignore the refrain of "confidence matters most" are most likely those who have never actually grown into themselves and were, much like I was, far more involved in futile attempts to polish the exterior while the interior rotted. Muscle, status, income, 'toys' (sports car, motorbike, etc.) and fashion were all there. Contentment, satisfaction and meaningful relationship were not.
Find your passions. Explore them. Care for your body with the intent of good health, not good looks (though good health often produces a good appearance). Proper nutrition, good sleep habits and regular exercise. Reduce stress. Reach out to family and friends - share yourself. Build something, anything, whether that be material, spiritual, social, business or political. Help those less fortunate than yourself.
Spend some time around those suffering in truly difficult circumstances - cancer, impairment, poverty or incarceration. It will help to bring some contrast to what you are feeling. And this is by no means intended to generate guilt inside of you, but compassion for those who are in situations that invite much greater suffering; suffering that they cannot easily mask, ignore or walk away from.
You won't get results right away, but just taking actions to correct difficulties or deficiencies in your life can feel very empowering. Take whatever reasonable steps you can to reduce your hair loss then move on. Don't dwell on it. What's the point?
Stop playing the victim. It's that attitude, along with all of the negative thoughts and emotions rolling along beside it, that are having the greatest impact on your ability to connect with others and enjoy a meaningful life. Not your hairline. By objectifying the opposite sex and reducing their worth to little more than basic equations and trophies you betray your misunderstanding of love and relationship. You may believe you are being rejected for your exterior qualities, but far more likely it is the projection of your inner demons that is causing the greatest damage.