If you're just arguing a level of degree, then that's a non-starter; the HN admins are the arbiters of degree, and will decide which discussions to keep around and which not to. That's how it's always been. In fact, this whole discussion is at least partially moot, given the fact that this very poll was created by a user. There is no indication that the people in charge of HN care about this issue, at all.
HN is useful because the commenters are highly knowledgable in their technical field, and the comments these people leave and the discussions these people foster are unlike anywhere else on the Internet. These technical people are not useful for political commentary. Politics is hard, and HN turns into an echo chamber very quickly. It's useless, and should therefore be stopped.
Good luck in your quest for a binary reality and acceptance of the current state of affairs based solely in the fact that an ideal should be preserved for reasons of technical merit alone. Unfortunately for you political commentary will continue, especially along the lines of this topic, and if it is pushed into submission I would gather the majority would call it out for what it is.
This isn't about my life outlook or my political views or if my daddy loved me when I was a kid, it's about the flood of nontechnical stories being submitted, and the worthlessness of the subsequent comments sections.
What you don't seem to understand is that nothing on HN is going to change as a result of this poll. HN admins are holden to no one, they act independently of HN users.
I agree that HN is useful when you can take something away from it, learn from it. However, in all fairness, the essay you linked to says nothing about a strict guideline about "technical" discussions. It's also not addressing this grey area where technical problems, that are not verifiable, and are tied to government all intersect. To me that makes this topic not a closed case of binary true or false regarding it's place on HN.
That's why I like HN though, there are a lot of smart people to discuss these sort of issues - technical or technically related.