Yeah, I don't think you're alone at all.
If I may go even more meta for a second, developing software is like developing a psyche to me.
We meet lots of self proclaimed open minded people every day that still judge a book by it's cover or a sound bite they heard 10 years ago that they still think is relevant. It's in some parts likely remnants of the ignorant and bigotrous past that the better part of society works hard to uplift and out educate. We get our education about the world from tv and people instead of taking a minute to turn a stranger (or a strange way of doing something) into a person we can relate to, or an experience we can relate to.
The issue you raise about pessimism.. If common sense was so common... why isn't it everywhere already?
What are the critical stumbling blocks that are occurring in the paths of individuals who choose to live by insecurity instead of finding some authentic personal sovereignty over their ability to take in, process, and contribute positively to the benefit of all of mankind?
I wonder sometimes if it's the drop of enlightenment syndrome.. where a drop of self-understanding leads someone to think they now will know everything they come across in an instant.
This conversation is more about a symptom though, from a lack of positive and healthy inner dialogue, which prevents positive and healthy self development that fuels unity instead of division.
It's just easier to say you're dumb and I know the right thing instead of being able to be open to change.
I've always thought the person discovering a universal truth in an argument is the winner, they got to learn and grow as a person. The person who may have helped deliver that truth might have strengthened their own belief by reviewing why they believed those things, but beyond that, it can feed insecurity to put on the facade of ego.
I think I'm at my quota of HN for the day, thanks for the cool comment about future goals, I liked that a lot.