Different people are interested in different things; personally, I'm mostly here for the sci-tech, but I also find other things interesting, and here on HN I often see unique takes, approaches and opinion for such topics.
Still: seems like any social site that's open to everyone will eventually gravitate to the same distribution of subjects, which is the distribution of subjects of interest to all people, aggregated. Would be a pity, imho. It's nice to have places to go for specific interest areas.
A topic tagging system could potentialy help people filter stuff.
"Hacking" is a mindset that can still be applied in interesting ways to social problems and assumptions. The standard political discourse does not generally operate with such a mindset (ideally intelligent, thoughtful, humble regarding uncertainties or alternative views etc.)
The audience here and moderation structure creates somewhat different takes on things even if comments are too limiting to have "debates".
These are fuzzy topics where it is difficult to objectively prove arguments, difficult to agree on philosophical scoring/ranking of various social states or end goals. The academic background is lacking in rigor and apparently ignores or suppresses large swathes of potential investigative topics.
There should be more attention given to the meta level of these topics. Having a more precise language and names for concepts would help have higher-level discussion without repeating basics all the time, and without the "appeal to emotion" type of anecdotal/moral/rage-filled discussion.
I am aware of things outside of HN, as I do read other sites. But when I open this one, I hope for a certain kind of content. If it's the same as all the other sites, it becomes kind of pointless.
So no, that's not "the problem". One problem I see, is that all places now get innundated with a great number of posts about the "problem du jour". Many times supported by opinions like yours "that's important!". It may well be, but specialization still has a role.
Maybe for a short time I want to not think about the "things getting worse", you know?