The way this sounds is that you are more concerned about politics as in people who take party positions and may feel excluded as a group when the majority of the community takes a different position. This is a slightly different issue i.e. party politics, and I think it is fine/a good thing, but it is also important to distinguish the two. This should essentially be under the same umbrella as personal attacks, as they are essentially the same thing.
I'd rather see HN go politics-free forever. Political discussions do not enjoy the same level of objectivity that technical and business discussions do. Frankly, it may be impossible to expect objectivity within political discussion because our political feelings are so deeply-held and tied to our individual upbringings, culture, and locale.
Unless HN can figure out how to give fair treatment to minority opinions, it's best to exclude these discussions entirely.
I'm all for flagging uncivilized discussions, but eliminating discussions outright because they might make people feel uncomfortable or might turn uncivil seems like we are missing a really important piece to the news we discuss here.
Minority opinions are never going to have "fair treatment" by the majority. I've been down voted several times for my opinions and I'll take it again just to be able to have the discussion here.
I also don't think that the hacker spirit responds well to barriers of thought and discussion.
It's just an anecdote, but I know my views have been greatly affected in part by hacker news. I was once a staunch libertarian, but reading a lot about universal basic income and other approaches people have offered to income inequality and social issues, while talking about the technology trends first and foremost, have convinced me to broaden my beliefs.
There is something about having a stated goal outside of political points scoring that helps everyone see themselves as part of the same team. I've always felt hacker news is largely about understanding things related to technology - trends, weird bugs, how startups work, etc. With that as our main focus we can defer to each other and learn from each other. When the main force is to debate the other side there is no room for concessions or finding common ground.
What I want in a community, is for people of all different views and backgrounds to think about a topic with the end goal of solving some problem. Hacker news isn't perfect there but it's close.