As a person in their early 30's who has never dated, I thought about this kind of thing recently and concluded I don't really know what I want out of life. A lot of journaling and therapy led me to believe this may stem from a lack of interest in taking risks. And that may stem from my upbringing. Specifically trauma for at least a portion.
I agree that there are a lot of reasons to think pessimistically about the future. However in my case it simply feels good to seek out such pessimism because it already fits into my world view. Which was shaped by mindset/trauma and disconnected logically from the fact that the Earth is melting etc. The people who raised me I was essentially given by chance. And they did not fulfill all my critical needs while excelling in other (material) needs.
And that causes pessimism in me to some extent. Not the economy, really. Not AI, really. Those are things I can be pessimistic about by proxy. Because generally my mind rewards pessimism stronger than others, so those topics become abstract punching bags. I can't remember how many times I've opened HN and come across a sentiment of pessimism I largely agree with in the comments. But is that because I seek HN for that? What would it matter if I just stayed ignorant for a week? What difference would it make?
Ideally, I think if I were to focus on things important to me it wouldn't be pessimism in general. I recently spoke to a woman in her mid-30s married with children and in talking about finding a partner she discussed how she believed all people are fundamentally good at heart, and the dating market is about finding those who will accept you now for who you are, without needing to change for them. This including an obligation to go to therapy or similar to change some of your beliefs that aren't as productive while still letting your true self on the inside shine outwards.
This I believe is where the disconnect lies. Because I've already been in therapy since 3rd grade until today, a period of over 20 years, and the longer I've gone the more I've realized those "true self" components that are left without being reconfigured by therapy are not conducive with "you are a good person at heart" that the fiancee automatically believes. And it might have been that incorrect belief that enabled her to get married, because it enabled her to find a person that wasn't like me. But I don't parse it the same way.
For a long time I didn't see an issue with myself. I just thought that's what "be yourself" meant. To believe the world is fundamentally chaotic and absurd. Because there isn't any other way to see it, having experienced first-hand what I did. And also I disagreed that there aren't any "fundamental" qualities so to speak that every single person on Earth would reject you for. If they accepted me for those it would be like accepting that they know someone will take advantage of them and deciding it's in their best interest to interact with them daily. I can only imagine the number of people diagnosable with narcissistic personality disorder that love "being themselves" and never want to change their fundamental nature for anyone.
This is better than where I was 5 years ago. I was so busy dissociating with work that there was no reason at all for me to think about marriage or dating. Even in the middle of therapy. And I would say I am not restricted by finances or lack of homeownership (it sounded like a weird American obligation to me not grounded in true desires). This is my personal explanation for "people are better off but don't seem to know it" in the article. My mind reconfigured itself so that such any notion of "success" becomes unrecognizable. How effective is a human whose brain does not process rewards and punishment normally?